There are 200's in the the 9's and the one builder that I am familiar with gives excellent prices on freshening up his trans. About the controller, there are options, my first twin turbo car has Big Stuff 3 with the provisions to control the trans. The only upgrade I would like to play with is paddle shifters. The trans can be configured for full manual operation and not require a computer. TCI 's controller is about $700 and there was another company that could do it for $500. I bet by now some one has taken a stock computer from a LS vehicle and use only whats needed to control the trans for the ultimate bang for the buck. 4l80 can be had in the $200 range if you catch them early in the u pull it yards, later years are better. Depending on how much power you are making now, it wouldn't take much in the upgrade dept. in parts or money to handle 10 second power. My biggest hang up was converter technology ( stall speed) , it had to catch up to the power potential of the trans, but I have been reassured and plan on getting my converter in the next few weeks to get that car back on the road. In a few years we will be putting 6 and 8l80e behind the motors also. Read up on it in the trans section here on the board, great info.