T3 Super 60

I found a place where I can get a rebuilt T3 Super 60 and a manifold for ~$680. I thought this was a good deal. What does anybody else think about this setup and price?

To be honest, I have seen super 60’s go for as low as $100 shipped. Another $200 for rebuild. Then you can get an Inline pro manifold for like $400 brand new. Even way cheaper than that if you get a used manifold. To me it just doesn’t really seem like a deal. Seems more like the person selling it would be getting all the money back that he put into it. This is also assuming that this isn’t some hella crazy expensive manifold that it comes with. HTH
Chris