First off, no I have not put one in a vintage sink.

But....

If you have the sink already, you can check the garbage disposal specs online, and see if the drain hole size will work.

I haven't got a garbage disposal, but I had to replace the drain fittings when I got my old sink from a dumpster, and put in new plastic drain lines. There was no problem finding the drain and fittings to do the job--I think the sizes are pretty standardized--the disposal fits to the drain assembly rather than the sink itself, so you should have no problems.

Garbage disposal sink baskets fit in the same size hole as the older sink baskets.

The disposal basket has the additional fitting below the sink to hang the garbage disposal.