No need for a visor.
The gauge isn't terribly accurate, I wouldn't worry with it at all. You'll learn how the gun is shooting pretty quickly.
Wrong feedneck bro, you need a VS series. Try
this
That hopper will work, but you will want to upgrade to at least a
revvy or go with a top of the line hopper like the
vlocity here. That is a killer sale on those btw, they go for almost that much used. The revvy would keep you wihtin budget and be plenty however, it's highly recommended. think of it as the difference between a nice kingarms or TM hicap, and a BE or well hicap...
The oild is ok, but honestly air tool oil is the same crap, and is 2$ for a MASSIVE bottle at a harbour freight