I have a jean...(The Ultimate Jean Thread For Beginners) - ask questions here. - Page 1174

Giving measurements won't help at all. What size pants do you wear? Perfect. Assuming you already have a pair of jeans, measure them out and compare them to what you see on Blue Owl and other sites. My guess is that you'll want a slim cut than a taper. There's a thread for the under-$200 group but my recommendations these days go towards Rogue Territory (see Stanton) and RRL (Low straight). Lee 101s or 101z depending on how high you like your rise would be another good bet. The jeans you linked are good, too, from what I hear.

http://www.styleforum.net/t/157881/non-apc-sub-200-raw-selvage-denim-options/0_50
They're pretty much in the same league. I'd think more important than specific brand would be fit. The denim is all good but they each have their own characteristics. I'd do a search for some worn pairs to see if you like the results. I love the denim on PBJ but I just don't feel like construction-wise they're in the same league as oni, sam, or others. I'd never buy another of PBJs but if you're looking for something similar but better, go Strike Gold.
There's a link above of $200 jeans. Without a price range, just look through the affiliates on the right: Blue Owl, Context, Self Edge, etc. and see their selection.
A regular tailor will use a thread color similar to the old hem but with a lockstitch. If you send your jeans into a place like Blue Owl, they'll hem them but keep the same kind of stitch (chainstitch.) The former is cheaper and easier, the latter is more expensive with a longer turn around. If you're not picky, a tailor is the way to go. There are a few on here, however, that are a bit more anal and want things kept exactly the same.
Rogue Territory is a bit like this, especially with the RK fit, but you can compare measurements. Otherwise, browse Self Edge's site or ask Kiya on his thread for a good rec. I just can't think of too many brands in the repro range that do a carrot fit. Lee 101 does it, Han Kjobenhavn does, etc. but they're all mid-range. Nothing wrong with those choices, though.

Of course, the alternative would be to find a denim and top block you like and simply have them altered. Or go the MTM route with a company like Jack/Knife.

I've had just had a lot of stitching go out on me and I've seen other pairs suffer the same fate. For whatever reason, they don't seem to stand the same level of abuse that other brands do. It's also not a repro brand even though it occupies the same retail space. So for these reasons it's hard to completely recommend them, as much as I love the denim and the rest of their collection, when other brands in that range hold up much better and have denim as interesting.

With Rogue Territory, I originally didn't want to like the brand. I saw Karl as yet another urban workwearer in a saturated market, but as I got to know the brand and became better friends with Karl I realized that he didn't have the same mindset or "brand philosophy" as the majority of his peers. His stuff is well-made and his stuff is different. It's the kind of brand you'd want to wear as well as support. Throw in the price ranges he deals with compared to other brands it just becomes a no-brainer.

As far as roping goes, the effect is more of a product of how the hem is done than just what kind of stitch is used. There are plenty of examples of roping on jeans with lockstitch hems, however, the more dramatic effects are seen with a chainstitch. The difference is in how the hem is shifted or "twisted" at the time of hemming. If a tailor puts the hem flush and flat before lockstitching then yeah, you probably won't see much roping at all.

But to say that a lockstitch pair would look "weird" after wear? "Weird" to whom? Unless you're cuffing, who's that anal? And if you're cuffing, who other than you an less than 1% of the population would bother to look or care about that detail? It would still look faded but without roping. bfd. It seems like a such a minute detail to fuss over. Do people stay up at night going through their denim collection just to check to see their roping is going as planned? If so, they're probably doing so from the comfort of a looney bin.