Since TDs didn't come with wires originally is there any possibilty that these are bolt ons? Probably not, most were converted using MGA hubs. Here's a trick I've seen used, find a large empty parking lot and take a jack and friend along. Loosen the knock off on one wheel a couple of turns and then drive the car in a circle at slow speed turning away from the side with the loosend wheel. Many times the side force and rotation will cause the wheel to slip out on the splines. That's what the friend is for, to visually check before the wheel comes totally off. When the wheel pops loose, jack up the car, remove the wheel and apply anti-sieze grease to the splines and reinstall, move on to another wheel. Time consuming, but a lot easier and cheaper than beating the hubs up with a mallet.
'73 Midget (V6)
'59 MGA (I6) under construction
'73 Lotus Europa
'52 MG TD kit car body project.
'98 Jag XK8
"There is a fine line between a hobby and mental illness"