I bought a Hydraforce SP10-58D for my valtra today. It was the only one in stock.12 weeks for the 58C here. I will add a double piloted lock valve and a relief valve.
I will see if I can make it work, it will probably be a temporary setting. I will receive my SP10-57C in the end of may, just after seeding. I will then test both and tell the results here!
The spools of the 57C, 58C and 58D are interchangeable, same bloc and coils. Spools cost 160$Cad