yep the weights got me a bit worried but it's going into a workshop with garage doors so I'm good on the entrance.
It's a concrete slab so I should be ok there as well.

I did find a couple of guys who went with this lathe and they seem extremely happy, it's a step up (at least cost wise) in the Grizzly gunsmith line from the 4003G, and almost all those people who have them are very happy so I think it's a safe bet.