-Excavator pins? How large? As others have posted what else will you want/need the lathe to do? A 13/40 seems larger than you'll need just for turning pins. Will you need a through-the-spindle hole for shafts? If so the hole size should be a consideration. Have you checked with any of the machine dealers in the area like HGR (Cleveland, Ohio), CW Wood (Cincinnati, Ohio), or FB Marketplace (your local)?
-I'm asking because Enco has never been known for selling good equipment. In the 80's there was an Enco warehouse near me (Chicago) and I perused a lot of their equipment displayed on the floor. It was always of poor quality and considered disposable back then. Perhaps Enco is getting better quality machines from Taiwan now but quality and machine condition should be considered suspect until proven. As someone else posted, the seller is likely pricing this for what he paid for it. Do you know how to check a lathe for condition? Headstock bearings, back/bull gears, feeds, and bed-ways should ALL be checked for condition, noise, excessive wear, and heat.
-You may have single phase electrical but 3 phase machinery can be run with an inexpensive VFD, I've got one on my lathe. You can also find better deals/choices on 3 phase machinery than single phase. If you have more than one machine a RPC can run the whole shop, that's what I have for 5 machines I have. Ask questions if you're not familiar with machinery.
-For just doing the occasional pin I'd shop around or lower the machine size. That's kinda pricey for a single phase Enco lathe IMO. I may be wrong, haven't bought machinery is several years.