I'm not really addressing your Q as I don't have one for sale or a good lead, but some thoughts on the subject....
First, what are you making with it? I'd guess 99% of watchmakers lathes were sold without slide rests, as the most common watchmakers jobs done on them is making balance staffs (hand graver work), pivot polishing and repair/replacement of broken pivots....non of which requires a slide rest.
For watchwork, I'd be focused on an 8mm set up with lots of collets (which it sounds like you are). On a proper watchmakers lathe the collets will be graduation in 0.1mm increments and have pretty much no measurable runout. Part of what makes it a watchmakers lathe is its small and you can safely get your face right in there; work is with a loupe and hand graver so you don't want a big headstock in the way.
A set of collets easily can exceed the value of a basic lathe, so its usually advantageous to get a good package deal. I reconditioned (brought to factory new accuracy, all wear removed) a Schaublin 70 and traded it for a 10mm Levin collet set (complete, 0.1 mm and also by 1/64, full set) to give a sense of how much of the value of a package is in the collets.
Neils is very proud of his stuff, but I suppose it must sell, else he wouldn't be in business. There was a very well equipped Schaublin 70 around Sarnia recently for irrc 7500, was on facebook. Not sure if it sold or was just taken down. A lot of money for sure, but for that lathe well accessorized, imo, a good deal. Its bigger than a watchmakers lathe; makes it capable of more, but also less convenient for say a balance staff.
imo that Gilman is grossly over priced. Hardly any collets and its a 10mm lathe making the collets harder to come by than the typical 8mm watchmakers lathe. Its not the original drive. That drive came from a Hauser machine...its very close to my Hauser pivot polisher drive, photo below, but oriented the opposite way.
As a budget, for a good lathe with a set of collets, 1500+, start adding in chucks and slide rests, 2000, maybe 2500+ but it can be a lot of more than that for the best and most complete set up, but deals do happen. Its also going to depend quite a bit on the pedigree. Anything less than 1000 with a full set of collets, keep the car warmed up!
John, you want to buy a work head for that facetting machine? Only most of an arm and leg lol
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