ive done some tuning on haltech's and SDS units, watched friends do megasquirts. i could definetly put together a basic map for you if you go standalone. I'd suggest sds. great to learn on and affordable. an sds can be installed in one day and started at the end of the day. They really are great.
make sure you get the a/f and egt first though.
i have an lm-1 at my house here in royal oak right now. i may sell it or rent it if you want.