I will second the widen your choice option, to give you more chance of finding a good buy. Accessories are expensive if bought individually, a machine with as much kit as possible is a way to go, if the machine is sound, be prepared to travel.
In the days of the demise of Technical Colleges machines could be had
with 3 and 4 jaw chucks, face plate, catch plate, coolant, low voltage lighting, taper turning, fix stead, travelling steady, gap bed. etc.
Good Luck
Pete