Joey, if you still need heater info, drop me a pm with your email and I'll send you some photos, I've done a bit of research on the heater on both early and later Aceas, I'm pretty sure the later one is the same as a frog eye sprite so is quite readily available, I'll email part numbers and pictures for you. The fan motor is made by Smiths and is very sililar to Healeys , however it's aluminium and not plastic but visually almost identical.
Hope this helps a bit.
Kind regards
Nick