and you don't need to use NRS fittings you can buy hand rail fittings online for under $10 ea and source pipe locally. Design your frame, buy the pipe and fittings, cut, assemble and off you go. There are many options for rafts out there. The only reason i suggested the one above is because it has the same dimensions as the original flycraft stealth and i believe is actually made by the same overseas factory but likely has some differences in the build.
IMO, both the Flycraft stealth and the cheaper version i showed you are too narrow unless you only planning to use it solo most of the time and note neither is a self bailing raft. Check out the 12'6'' Saturn Triton which is wider, longer and self bailing with drop stitch floor. Over the years i've seen allot of guys buy a small sized stealth only to turn around in a season or two and sell it because its too small for their needs.
I'd want a wider raft for 2 or 3 person use. I'd want a 55'' or wider raft and i'd want self bailing and a least 12 ft preferably 13' or 14' if the goal is fishing 3 people.
Another small raft 2 person package to consider that IMO a much better value than the Flycraft stealth is the
Outcast OSG striker raft package.
Its hard to beat its value, quality and portability if your buying a new 2 person rig and not putting a custom package together yourself. It comes with 5 year warranty and is self bailing and made by a a company that really stands behind their products 110% with great service.
There are many raft options to consider from many manufactures.
Aire
Hyside
NRS / Star
Maravia
Sotar
Vanguard
Custom Inflatables
Demaree aka DIB
Wing
Jacks Plastics
RMR - Rocky Mountain Rafts
AVON
Maxxon