Since Takom is now in the 1/35 helicopter business, I hope they come up with this Huey:
UH-1C Huey Gunship; with provisions for the M21 sub-armament station with either M60 machine guns or M134 miniguns. M75 nose mounted 40mm grenade launcher, XM157 or XM158 7-tube, 2.75" rocket launchers.
I would rather Takom made a new long-bodied Huey series; UH-1D, UH-1H, UH-1N, UH-1Y. I would like the Y first as the others are out there already (Panda come Dragon kits), just not great quality.
The short-bodied UH-1B and UH-1C Hueys are already pretty well covered in 1/35 and you can get all the weapons options you mentioned in different kits. Both companies kits are equally rather good in quality and details as well.