been forever years since working on the 51 but getting back at it......
I have a MII power steering setup and just ordered the front accessory kit for my motor (SBC) and it comes with a power steering pump- is a separate reservoir required?

I am sure it is going to be fun having the hoses made up too......

 

I have an MII power steering rack, using my 1990 Crwon Vic power steering pump and I am not runniing a resevoir. Besides getting custom hoses made, you might also check to ensure your pump pressure is compatible with the steering rack.