Dennis,
Tractor Supply Co. has a pretty good selection of hardened (grade 8) pins. Many lengths and sizes...If there is one near you, you should be able to pick them up and finalize the assembly of the loader. They are probably 3/4" or 7/8" right??
That's great news! Glad I could help.
We need photos!
Now I am getting jealous!

to answer the question thou,im tring to feed the loader valve fluid i currently have a line coming from the hp out on the block under the seat to the right of the 3ph stop valve that only works when i have the raise(3ph)selector in the raise position.id like to feed the spool and have everything else work as normal,can ya help me out?