How many of us are there? Owners of Dodge based RV's?

Leeann wrote:
Oh, and there’s a fusible link in the wiring to the starter somewhere. Ours was wrapped up in loom/tape but was a total rat’s nest under the ****. We had to cut it out and replace with better wiring.

I hope you replaced the fusible link with a suitably large fuse or circuit breaker ...

In any case, a fusible link by itself wouldn't cause what eyeteeth is experiencing ... problems there would be loose or faulty connections ... or a small break in the link.