Body work on a rusty 1970 Blazer!
 

I have a 1970 Blazer which I have managed to get rust free except one place. The front windshield frame where the removable top bolts to the cab is cancer ridden!
Do any of my fellow enthusiasts have any recommendations on how to repair it? Blazer cabs are hard to come by and truck cabs are not the same but maybe somebody savvy with body repair has a solution or a company who makes this replacement part.
Appreciate any feedback! Thanks!

they might sell just the upper half of window frame kinda like how they sell cab corners

Yeah... been coming up empty so far. Does anyone know of a catalog that has the upper half window frame for 69-72 K5 Blazers? LMC doesn't carry them.