Wow, Jeff, welcome to the time warp, jet lag, whatever ya wanna call it, lol.  It won't be so painful, some of us have been thru it too, no worries.  Once you get a chance to explore all the changes over the decades, you'll find we've acquired quite a few really cool tools, kits, aftermarket accessories, etc.  Just have fun, that's the key.

Paints for birds, check "Alclad II", among others.  Many bird builders love that stuff, me too.  Decent airbrush kits can be found for a reasonable price at Andy's Hobby HQ, as well as other places.  I just bagged some paints from here at a really good price; https://www.scalehobbyist.com/index.php

Youtube will get you up to speed with almost anything you'll need to know.  Like starting your new job, you've got some learnin to do, so have fun and enjoy the journey; it's just too much fun otherwise.

Feel free to ask questions, we'll do the best we can to get you going in the right direction.  Just keep "sniffin paint and gluin them fingers together"!

Cheers, Ski.