theres a company called qpeng who make a loom and supply a pre programmed MBE ecu for this conversion, it comes pre mapped to take the 150 bhp AGU engine to 200bhp

buts its at least £850 for the bits

you will also need an air filter
customer exhasut
merc sprinter inercooler
8v friction plate
16v prussure plate
mk2 golf carb throttle cable
and a G60 engine mount from memory