Well, just made a trade for 222 Miranda, 359 Apple, 374 Tank and 378 Barold. That completes all of Series 3 and Series 4 for me at long last. I actually did make one eBay purchase a few months back to get 304 Phineas, 329 Broffina, 337 Queenie, and 381 Gloria. I really wanted Phineas and could get the others in a group on the same shipment for $8.75. So, 2 bucks a card meant I was willing to do that.
That just leaves the Welcome Amiibo series and these 3:
5 Paolo
38 Spike
43 Sprocket
I'd just buy them off eBay except sellers want like $25 and up for these cards plus shipping. Ugh. I'm not paying that much for those cards. Hopefully, somehow and someway a trade can happen or I can find them at a reasonable price on eBay. (Or in a trade with a member here still.) In the end, I'm pretty happy to have at least wrapped up the original AC card Amiibo series. Can't wait to see these Amiibo cards not supported for the upcoming AC Switch game!