I am restoring my Bobcat 610. Serial number 4956-M-11978. The lift & Aux valve part 6504941 and the tilt valve part 6504942 are no longer usable or repairable. does anyone know of a 3 valve bank that will work on my machine in place of the original valves. I am looking for brand and part numbers for after market valves. Used valves are very hard to find and are no better then the ones I have. I realize hydraulic lines may not line up. That can be taken care of with new modified lines. the size/dimensions are important though. The valve bank as to line up with linkage to foot pedals. I could use some assistance. Thanks.