Need help 6 speed for an LS3 in an F-Body

[NRV2L8]

Looking for some input on 6 speed tranny choices to mate with an LS3 that's going into a 69 F-Body. Need pretty much everything from the Flywheel to Yoke.
I want to stick with a 6 speed but have read different things concerning the T-56. Shifter is located too far back and so on.
Any good sources to purchase a 6 speed or Brand to look for? Trying to save a few headaches when it's time to drop it in.
Your help is appreciated.
Thanks Marc