Ok, thanks everybody for the information about DROs.
Does anyone have experience or knowledge about the Weiss lathes sold by DRO PROs, particularly the 11X29? Are they good people to deal with? Good customer support, etc.? Seems like a slightly better machine than the PM but comes with less stuff.
DRO-PROs is 2-3 hours from me but I have no personal experience with them. A lot of the import lathes are made in the same factories with the individual sellers choosing different options. For example I have a 9x20 Enco lathe made in 1994, I have bought parts from Grizzly for their 9x19 version G4000 and they work on my lathe. Jet sells the same lathe in both a 9x19 and a 9x29 version, but theirs has a 1-1/2" spindle instead of a 39mm thread.
Weiss and PM appear to sell the same lathe. There was a post recently asking this question. Matt from PM said theirs is different, but didn't go into detail.
I also have a basement shop, but I only have 1 step to deal with since it is an outside entrance. I still have very limited access having just a single regular width door, narrow walkway and a low ceiling making moving heavy objects fun. Lathes and mills can be disassembled. I have a 950lb 11x24 lathe and two 900lb-ish mills that I have got into the basement with just my wife and I. The lathe was the most difficult, as the mills broke down into far more manageable packages.
I broke the lathe into several pieces, the bed and headstock being the most challenging since that section still weighed around 350lbs and that was after I pulled the spindle and gears from the head, and the tail stock and carriage from the bed. The base split in half, the side with the motor weighing about 200-250lbs, the empty half probably about 100lbs.
Personally I think the 9" and 10" lathes are a nice size, particularly for a beginner but don't think you can't get a larger down lathe there if you find you really need a bigger lathe. The PM 11x27 or 12x28 will give you a 1-1/2" spindle bore for not a whole lot more weight. The 10x30 is 395lbs, the 12x28 is 490lbs.
My most used lathe is a 3.5x17" Sherline that weighs under 50lbs, so size isn't everything.
and yes, if you read through this post I refer to 3 different lathes, I bought the Sherline lathe because I didn't have the room for a big lathe, and now I have 3 lathes, 3 mills, an electric press and a shaper... I got very creative with my space. This may also be why I tend to advocate for something smaller to start out. You can always go bigger down the road after you have experience and really know what you need.