The tractor came with no air filter and was told by PO that it's actually an 18 hp motor but he couldn't find a cap for it and the 16hp air filter cap fit.
Regardless - it appears Amazon sells a kit that fits 12.5-20hp motors - Vanguard & B&S. If I can't find something at Rural King, than I'll get that kit. (This project falls after cleaning my shed, so not in a big hurry with the shut down still in effect.)
I was also considering on draining the oil and hydraulic fluid as there appears to be a little lag in lifting at top and bottom - but there's also linkages that appear loose, so it might just be the linkage. Regardless, an oil change wouldn't be a bad idea.
When I get a chance, I was planning on attempting an adjustment on the idle/fuel adjustments on the carb, but I also have carb cleaner can if that didn't work. It idles rough, but seems to clear up when it's mid-high idle.
I had been meaning to purchase a pressure gauge anyhow, so I'll look into that also.
I'll get it registered, though I don't know if I'm finished wheeling and dealing. The thought behind this trade and any other vintage tractor I was looking at was to help get into tighter spots in the woods on my parent's farm that the JD 2040 or even Farmall B couldn't get to, but also do little tasks around my house in town. Not sure the lightness of the tractor is going to be sufficient, but it's bigger than I remember my last White being, so I might be surprised.
Also - if I find I need a rear PTO - I can't imagine it'd be difficult making something up since the deck is PTO driven and it has a front PTO shaft. Seems I could install a carrier bearing to the rear and make sure I have a torsion coupling to protect the tractor.
Call me weird, but I think it'd be cool to transform the mid deck into a rear deck...