First Unisaw Purchase?

I just purchased my first Unisaw and naturally have a few questions. It's an older Model 36-945 with a 3hp single phase motor, right tilt, and Biesemeyer 50 fence. I paid $800 for it and seems to be in good condition. First, what do you think of the purchase and saw in general. I would like to buy a mobile base for it and came across the following as possible choices. Is one better than the other? Any other options?



Delta 50-284

Delta 50-289



Also, missing from the saw are the following. Any suggestions on replacing these?



Riving blade

Blade guard

Blade wrenches

Miter gauge

(e7)

First Unisaw Purchase?