Dont forget about the L4-80E, L6-80E (6 speed auto rated up to 800+tq) and the L4-80E that comes in the 96+ GTs. Lot of the 4V guys are running the TH400 and have great results. Like I mentioned the other day, you'll have to get all the parts associated with the auto. Converter, pedal assembly, cable, drive shaft, maybe gearing...etc...etc...for what you do with the car, Id say an auto is the way to go. Perhaps you can band-aid the T45 till the summer and build an auto up in the meantime. Then, this time next year youll be ready for the winter (better weather) race season.