Great news, it shouldn’t be much of a problem. My guess you’ll be familiar with all the “P’s”, proper preparation prevents piss poor performance. Does your replacement engine have the coil pack on the back of the engine, if it has it could be worth changing to the plug top packs. You will obviously require the coil packs but also the cam cover of a matching engine. If you can get the matching MEMS units that would be advantageous, although how you would interweave that with what you have I wouldn’t know.
The workshop manual (Cobber’s favourite reading) is in the community pages so is the electrical circuit & electrical diagrams, but you knew that already. However you may be unaware of Dieter site, which is a little gold mine, there’s the first iteration of the circuit diagram which will apply to your car.
Good fortune awaits those whose adventures are well prepared.
M