/6 to V8 swap

Everything sounds OK to me. As far as the T-bars go, it depends in the final analysis what you plan to do with the car. If it's to be a tire frier with an occasional ¼ mile, what you have will be OK. If you want a canyon carver, IMHO, you'll want a larger T-bar as well as an anti-roll bar on the front end. Good luck and happy motoring.