[swarmee]

You probably want to start by buying bulk lots of those sets on eBay or here on the Net54 Buy/Sell/Trade section, but first figure out what condition you want to collect: VG, EX (no creases, some corner wear), or NM, etc.
Once you have a few groups of each year, fill in the gaps or upgrade using COMC where you can see good quality front and back scans and select cards at the price and quality you want. You can then hold them on their site and once you have a bunch of them, you can ship them at your timing choice.
You might also be able to find a bunch at Sportlots, but with the hundreds of sellers on there, you'd have to pay shipping for each seller you want to buy from. You can save a little by having the sellers send to the Sportlots box, and then you can package up the entire group when you want and have Sportlots send them to your house.