I would stick with ms 2 with the extra code .

Yes you will be fine running with a dizzy and coil if you wish.
Perhaps no one has a base map for download for a pinto but i very much doubt it .
Join www.msefi.com there a very helpful bunch . Also serch there forum and im sure someone will have a fuel and spark table for you to start with . You must be aware that these are only to help you get your engine running and u will have to alter these to suit your own needs and engine spec. Also have you got a good quality wide band lambda gauge as this is a must for safe engine tuning really .