As an electronic tech I may look at it from a different perspective. I would see if it could be repaired rather than replaced.
You burnt up one fuse connector so why not try to get a replacement fuse holder that could be soldered in. A blade type circuit mount fuse holder may fit the bill. You would need to measure the board/blade spacing and get one that fits. Or like previously mentioned, an inline fuse holder soldered to the board could work.
Look at all the wire connections that would have to be transferred to a new unit. This could open up a can of worms and would take a lot of work.
Retired electronic technician (45 years in the field)
2017 Greyhawk 29W
solar & many other mods
wife (maybe I should have given her top billing)