Here is what I did to rebuild mine based on his thread. I bought a blower motor from MWB after trying many different new motors that were suggested as alternatives, but to no avail. The one I got from MWB was really good, and the only thing I did was add a layer of paint to ensure it doesn’t rust anytime soon. Originally I had my heater core repaired as they’re impossible to find, but the evaporator had a leak at one of the joints so I went on a mission to find a company that could replicate the OE unit. Surprisingly they also could do the heater core as well. They did so with pretty good accuracy the only thing I had to do was increase the hole size so I could fit a stand-off on the evaporator. Below is what the finished box looks like and the company that recreated the hc and evap.