Tim Shoppa wrote:

snip
Or, drill holes for all leads, and then use a small milling machine
cutter or just a larger drill bit to remove the copper where you don't
need it.

Indeed, this is what the Stahler mini-mill bits do; they create an instant
pad wherever it is needed. Stahler may no longer be in business, but
perhaps there are other pcb fab mini-mill bits out there. If not, a
good machine shop should be able to create a few for commonly used
pad sizes, and they will be forever useful (to justify the expense).

Michael