As I said though, it depends on what look you're after.
I've been buying original clothes since the mid 80s (when it was cheap and easy). I've spent a whole lot of time since shopping for such stuff, so I've a few bits to choose from. I know its nice to just go to the shop and get a new shirt, rather than scouring wierd shops full of junk trying to find summet in decent nick that fits. But what I always wanted was an original look. What better to carry it off then the original stuff that was worn back then? Obviously creating the look is a lot more than buying some old bits of ebay, throwing them together and expecting to look like a cool skinhead. But that's why I've spent all the time in between talking to old skinheads and looking at old pictures and figuring out what was what. This forum's been a good source of info as rather than a drunken 5 minute chat with some old bloke you met at the bar, its a well thought through comment on older times, hence full of detail and meaning.
There's plenty of stuff ye can buy nowadays and still carry off the look and from a styling point of view that can be achieved.
What hunting for old stuff has taught me is to be mindful of detail as you need to know what constitutes an original and what doesn't.
In '69, it was a lot easier as you went to the right shop and bought the coolest thing he had - relatively simple.
There's a big difference in looking at 500 variations of Levis and deciding which ones fit with the skinhead era and why. That's why I can comment on old bollocks like the cut of a Ben Sherman pocket, where that's something you would have never had to think about in '69.
Like going to the tailors and knowing what suit to ask for (as was mentioned the other day). If you don't know (and he doesn't know), it'll turn out wrong. Same as if you're at the shirt makers getting your original Ben Sherman copied, if you don't point out what details should be copied, to what accuracy and why, then you may as well buy a Mikkel Rude.
So I know that's a different mentality to how it was, but in so many many ways, its not 40-odd years ago and I'm not 17, but I'll try and recreate the look as best I can, with the resources available.
(but don't tell anyone I'm using a magic typewriter that lets me talk to total strangers, who live miles away!!)