Rebuliding the lo-po

[Pesty351]

I think I have my cam choice down to 2 cams.
2122 - Edelbrock Performer-Plus Cam D 270/280 L 448/472
COMP Cams CL31-218-2 - D 268/268 L.456/.456
What do you guys think I'm afraid to go any bigger with a stock converter on a DD

[Pesty351]

Time to get this back on track. (I've been caught up in my R/C world) I went with the Performer Plus cam and have the rest of the motor sorted out.
Now I can't make up my mind with the tranny. I was thinking if I can use the flex plate that was on the motor when it was still in the vic. With the stock 250 mav converter and tranny that would be the cheapest/easiest route since I have all the parts already. Does anyone know if that will work?
If not I also have an AOD sitting around. I'm just not sure about the driveshaft, tv cable, and shifter(do I need a floor shifter?).
But I was also pondering the idea of a T5. I'm sure I could work out the pedal and cable since I already did once with the vic. But again I'm not sure about the driveshaft.

Im really leaning towards the c4 in the mav if anyone knows if that felxplate wil work or what one will work it would be greatly appciated. Thanks!