Nice!
Based on pictures I have seen the TTI DS mounts looks to have been engineered specifically to make it impossible to use a low mount AC compressor. Pretty sure they were the first to market so not a big surprise.
The Schumacher DS mount (same as the ones linked above from Classic) looks to be really simple to mod and move the mount back. The QA1 k-frame looks a little sketchy to try and relocate the DS mount, but just a guess. Either way, I think it might be possible. I know it has been done using the spool mounts, but I would guess the biscuit mount k-frames would be even easier to do it with. I really think it would be possible to relocate the DS mount on the k-frame and modify the Schumacher DS mount and get a low mount AC compressor to work without moving the motor forward. At least with a VVT motor, but maybe with non-VVT motor as well.
The VVT motors appear to use a shorter compressor, plus it it moved forward about 1/2", which is why the Holley mounts say low mount compressors will work but only on VVT motors. If there is a shorter compressor for a non-VVT motor, I would look at the compressor for an 09-10 Challenger with a 5.7, the one without the bottom rear hole. In theory, those motors share the same belt offset as the '08 down 5.7 non-VVT motors, but no idea if they changed the spacing on the timing cover so it is just a guess. Pretty sure it was researched pretty hard and people came up blank but could be I am wrong, or they just missed the oddball belt spacing the '09/10 5.7 used.