Gav's idea is a good one, and it would allow you the chance to do some initial homework by seeing whose might be easiest to adapt.
Just to throw a long/shot alternative your way, my Dad (Donunder here on CC) bought a bolt-in front end from the States for his Arntz:
FAST CARS, Inc MGB IFS
It's a beautiful front end, but for all of your necessary fabrication work I'd follow Gav's suggestion.