Merkur XR4Ti ??

[alga]

Welcome to the forum! By all means use it as a donor. And do get the Chris Gibbs book. Essentially, you'll use the front hubs, transmission, diff, driveshafts, rear hubs, steering shaft from the Merkur. They're getting rare in Europe too, so having one at your disposal across the pond is a chance that's too good to miss!