Hi All, Hope someone can help or point me in the right direction, my car has a turbo conversion completed by myself (garret GT28-59)

I had a .bin supplied by a fellow enthusiast (great job), as he had already completed a similar project. The map was maybe 90% complete, I can no longer get in touch with him so need to try and find another method of completing this project. I was hoping to use tunerPro possibly but I do not have a mapping file to help. Even though the car drives perfectly most of the time it sometimes goes into limp mode, which requires a restart and I have lots a P100 maf errors which don't cause any issues apart from a light on the dash. Any help you can offer would be great.
PS I can send you the modified .bin file and original if it helps. A great deal of work was completed within the file as all the fueling is controlled by a blow through MAF setup (inside the boost pipe work).

Regards David