I do love tweeds... Problem is that aside from the basic herringbones, they are hard to find RTW, and I'm not in a place where I can go building a wardrobe full of bespoke SCs Will definitely keep my eyes open though.
Really wish Bookster made a less-structured cut; I have long coveted many of their fabrics, but the super structured traditional hacking jacket just isn't what I'm looking for.
The Bookster tweeds are all from different mills whose cloths are readily available. Granted that's only - or at least mostly - bespoke or MTM so that doesn't help you at this point.
But it might be worth looking into if someone like Samuelsohn could do a reasonably priced MTM job in that style. Or have a look at the forum darlings - Howard Yount, Kent Wang or Panta. No idea on the selection or prices since I'm not really interested in RTW but maybe they'll have something that works for you.