Yah, any automotive machine shop can diagnose the head components and then let you decide what to do. Not very miles on that rebuilt head bodes well for less work necessary. Sometimes, if the guides/seals are ok, then maybe just retouching the faces and seats will make it good again. If they retouch the faces/seats then new seals will be necessary. Probably worth having it looked at as long as you have it off. Depending on your intentions, how long you'll keep it, etc.