Assuming A series??
With out much thought, remove the piston from an SU carb and weld a hacked off injector housing from an SPi set up in there, it would need an external pressure regulator and the fuel supply sorting.
I suppose you would have to run MAP for the fueling ignition and acceleration as the TPS is a bit of a give away.
As for the coil pack, why bother, the SPi dizzy and coil is not that bad and will give you what you want. Tom Fenton on turbominis.co.uk can sort you out with a machined crank pulley and sensor bracket at a very reasonable price
If you want an injector housing to play with just give me a shout
Just one thing though, there was a chap trying to promote Mtech Automotive on turbominis suggesting a sales pitch to the Mini enthusiasts with much a similar idea. He got shot down in flame i might add, Bat might remember that one, got quite interseting. However I know where your coming from with this, its a classic car and you want it to look classic