Hydraulic questions

[carp]

Hi guys, first post here and have a few questions so here goes,

1. what are my choices for valve blocks? from my research it seems only leimbach does 1? same for hydraulic pumps also

2. i was looking at the cylinders from clippard and the price looks ok but im unsure of the size i will need, what size are you guys running on your excavators?

i did have some more but i have forgotten hopefully they will come to me soon

thanks