I those 4 functions are all you need, saw, saw cyl, conveyor and splitter and you have to buy a control valve anyways, One valve to control the splitter, then buy a three spool valve to run the saw, conveyor and saw cyl. You can use 2 flow controls to control the conveyor and saw cyl speed. You never said, is you slasher saw complete where all it needs is the hyd connected. If so, it may already have a sequence valve plumbed in. The sequence valve would allow you to run the saw cyl and saw off one spool valve.