Man, I wish I was closer as I love the old DC systems. I sailed on a ship as Chief Electrician that was DC most of the ER crew was afraid of it but I loved it. Shit most of the old Tugs that I cut my teeth on were all DC.
If you have any problems let me know and I will see if my brain cells are still working as it’s been over 20 years but sometimes my brain surprises me. If you want I can PM you my cell number and will give you all the help that I can.