Carefully sprayed plusgas on the rusty threads before turning. Used a small socket to support it as best as possible and it snapped clean off on the thread with very little pressure

I've tried my worn easy outs on the nipple with little joy. I'm going to try a new set.
Anyone know if gsf do bleed nipples, my local motor spare suppliers don't sell them. Is it worth getting a whole new caliper (scrappy) if it needs drilling out?
Any advice appreciated. Atleast the car is drivable for now.