Welcome to MCB. I also took a long vacation from Paintball. I was a little disappointed with the AGG/speedball culture, but I found MCB and life is better now.
One thing I would invest in is new goggles. Not "new" used goggles, brand new in box goggles. Any safety equipment you have had in storage for over a decade is questionable at best. If you like the JT spectra line, ANS Gear sells them as a build your own package for $65 plus shipping.
Good luck and watch your wallet, all the old guns a rock bottom prices can be hard on your wallet.