I want to use the fan that came as part of the original 300 climate control, and I’ve been working on getting the condenser for the A/C and the heater core to work with the spaces and holes I already have in the Jensen.
Here you can see a basic mock-up of what I think will work. I’ve made the 300 system fit (I still need to close things up and there is quite a bit of metal work so don’t think I’m saying this is anywhere near finished), and I’ve modified the original Jensen fan housing to accept the 300 fan.