I draw the line at boycotting Colt. That is one company w/ to much history. Although I can't say that I have any short term plans to pick up a new Colt, If they are still around, I will be picking a Single action Army in a few years.
Anyway, I think I may have found my upper.
Armalite has an upper in their LEO/Military catalog which meets all my requirements except the bayo-lug. If I can find a stainless, barrel-mounted bayo lug, I'll pick one up. Maybe Kurt can make me one.
The upper is a flat-top, A4 upper w/ a pic. rail gas block. It has a threaded 16" stainless barrel w/ a 1/8" twist. They will mount an A2 flash-hider for me. Although I didn't really want a stainless barrel, they say it is a much more accurate set-up. It features a free-floated barrel w/ a fiberglass handguard. The dealer price is quite reasonable.
Bushmaster just didn't make the upper I wanted. The Armalite seem perfect for my use.
Stats from the LEO catalog
BARREL • 16" SST CARBINE
RIFLING TWIST • RH 1:8 INCH
FRONT SIGHT BASE • PICATINNY RAIL GAS BLOCK
MUZZLE DEVICE • A2 FLASH SUPPRESSOR
Thanks for the help.