From the factory: All breakers are on same busbar w/ same wire/cable from battery to it (I have just 1 battery). All the breakers then go to wherever after that and the hyd pump has a wire/cable directly from it's own breaker (50A). I had replaced all the breakers a couple years ago, yet still had issues w/ slide out doing exactly as yours MillerTime. Being frustrated, I asked like yourself as to what to do and below is the result which I hope I explain correctly in words.
1. Bought a 80 breaker
2. Had a co-worker add ends to a 6ga (cannot recall exactly the gauge, but like a car starter cable size) in a 18" length
3. Mounted the 80A breaker near the rest of the breakers on wall.
4. Bolted on one end of 6ga cable to battery post along w/ the factory cable.
5. Bolted other end of 6ga to one post of the 80A breaker
6. After removing the cable from factory 50A breaker for hyd pump, bolted it onto other post of the 80A breaker.
7. Done.
8. 50A breaker disconnected from busbar power.
All other factory breakers were left in tact. So yes, there are 2 cables on the positive post of battery (1 for main buss bar, other for the 80A breaker). Going this route, your by-passing the factory 50A breaker for the pump and now it has it's own "Dedicated" cable & breaker.
If you wish, I cab take a pic tmrw and try to post it (I don't play well w/ computers) as to my set up.