I just went thru the same thing. If your range is the same as mine (a wedgewood) then good luck finding parts. I found the pilot light assembly and replaced that (not the thermocouple) and it did not solve the problem.
Pilot light Thermocouples are not to be found however. The range itself was fairly rusty but I would have cleaned it up and repainted if I could get it working.
I ordered this from Amazon(Johnson Surplus):
linkHowever I see they just bumped the price up from $450 that I paid. The also contacted me and said that model was out of stock and offered a stainless steel version instead. It's been shipped but hasn't arrived yet. I have the new pilot assembly PM me if you want to try it.
Arctic Fox 25Y Travel Trailer
2018 RAM 2500 6.7L 4WD shortbed
Straightline dual cam hitch
400W Solar with Victron controller
Superbumper