But, for the reasons given in my response to Settle, if you want a newly painted old frame, surely it's better to get it done yourself so that it can be modified to suit whatever use you want.
Also new paint may be hiding old faults (just like old cars that have been resprayed!)
Spearpoint https://www.ebay.co.uk/itm/Vintage-A-S-Gillott-50s-Spearpoint-Racing-Bicycle-Frame-and-Fork-/185165601235?