Mount Troubles

[bad 71 chevy]

Ok i have a 6.0 all ready to be bolted in to my truck. I am having a major melt down over the engine mounts, I know it should be an easy answer but i an making my life hard. So this is what i want.

DONT WANT ADJUSTABLE MOUNTS. I know they work but i just dont like them.
I want to have a 1 7/8" long tube header.
Would like to have the ac in stock location not a must as AC will be added later
dont want to cut the frame to make the headers fit.
and would like a mount that replaces the Stock stamped Perches.

So far i have found 4 and i am wanting to know if A. Anyone has used them and B how did they fit. My main contenders are BRP and IFS My dislikes between the 2 are BRP is the $$$$ and IFS uses the clam-shell mount and i feel if i am spending money on a custom mount i dont want to use a clamshell.

So the 4 i have found is
POL
CPP
BRP Hot Rods
ifabspeed