I get it I really do. I had a soldering gun that belonged to my father and I broke its case. I actually went on eBay and found another gun, bought it and scavenged it for parts to repair the old one.
I suppose it’s possible you could do something similar. Keep in mind you are trying to repair that which was not meant to be repaired. This means you’re going to have to spend more and do more than what it would take to replace. GL