Got brakes?

Hey all, I have a ’88 (?) TRX350D Forman that the front brakes are not working. It appears the slave cylinders on both sides are seized from corrosion. In its earlier life it was rode hard and literally put up wet and not ridden for a few months. Seems you can still get cups and boots but not the whole assembly. Also I will need shoes if I can get the slave cylinders working again. I have not tried to disassembly, clean, hone, and use what parts are available but suspect that will not work. Thoughts on slave cylinders from a 300, and recommendation for shoes?