recommendation - see
http://www.donstith.com Don is one of the world's most knowledgable men on real Hawken,s and his kits are all based on his own originals.....
I am for sure going to do .62 cal. ; is that somehow feaux pas in a Hawken?
On the large size but not unknown....
I am going full stock and flintlock...are those OK?
Yes there were many fullstock Hawkens made. Flintlocks - none currently in existence (a couple of conversion sthought do exist), but the time period in which they were made says there was good possibility - lock recommendation - Chambers LATE Ketland
Will a hooked breech or regular breech be more in keeping with the Hawken tradition?
For a fullstock flint - standard breeching
How about regular pins versus wedges to hold the barrel in place?
Wedges definitely
How about barrel length....I am leaning toward 36" or maybe 38"?
Either length - tapered or swamped, straight barrels would make the gun barrel heavy and only a VERY few Hawkens have them, the majority by far were tapered, but several originals exist with swamped barrels
FWIW - Hawkens are a first love for me, been studying them since I saw my first one in a magazine in 1962, still have that magazine.
If you're interested I can post some pics later.......