Head should be fine unless you see discolored areas from extreme heat, make sure the gasket surfaace is flat and the head fits on with no big gaps if its not perfectly flat you can get some aggresive sandpaper and lay the head on it going back and forth to flatten it back out and replace the gasket do not put gasket sealer on the new head gasket it keeps the head gasket from sealing correctly resulting in failure, maybe not immediately but at some point make sure head bolts aare torqued correctly.

Everything looks very clean in there, like they may have been replaced recently , whats going on, are the cylinders leaking or just wont build pressure or stuck. IF the seals are jusy stuck you may be able to keep working with them with fresh fluid to free them up, if you have to take them apart put in a kit or replace them , you can usually find aftermarket wheel cylinders cheaper than the kit and the aftermarket ones work fine. You just have to remove the old one replace it and reinstall the brake line. If you use the kit you have to take it all apart hone the cylinder clean it all up and reinstall the rubber parts and spring that comes in the kit.

Definitely going to do that I have a feeling that head might be a problem I'll just use a straight edge and check it will a feeler gauge to make sure if it needs to be replaced.