good stuff mate you really wanted a blue one now you have 2 of them blue and silver, like i did ,but sold my blue 1 not too long ago ,once restored it will be nice mate i have noticed there have been some on ebay that have needed major resto work ,from SA but not sure on who bought them at least your car is complete ,engine bay looks pretty tidy and the grille /headlight surrounds all there,maybe keep this as a stock and have the silver one as the fun car ,good stuff anyway leigh
as far as injection goes, magna injection is just as easy as TPI, you still need the same stuff to run it all.
that is unless you ran an injector in the crossover pipe or something you could keep the std sigma intake etc