Some cool/rare finds on eBay:
http://www.ebay.com/itm/Nike-Air-40-40-GD-3-4-Hi-Size-13-5-Men-Baseball-Turf-Trainers-NEW-/172071599920?hash=item2810443f30:g:PB0AAOSwkZhWT7OY...
Air Griffey Max 3's
http://www.ebay.com/itm/Nike-Air-Griffey-Max-3-Metal-Baseball-Cleats-NEW-Size-14-/172035642386?hash=item280e1f9412:g:r0oAAOSwiwVWT7aW
Some really rare Griffey's up for sale
http://www.ebay.com/itm/Nike-Air-Griffey-Max-3-Metal-Baseball-Cleats-NEW-Size-14-/172005635806?hash=item280c55b6de:g:r0oAAOSwiwVWT7aW...
I found a red/burgundy Nike chest protector on eBay. You said you don't want to pay $100, so maybe you could negotiate with the seller...
http://www.ebay.com/itm/NIKE-PRO-SIZE-16-Gold-Precision-Catchers-Safey-Gear-Burgundy-CHEST-PROTECTOR-/380520781681?pt=LH_DefaultDomain_0&hash=item5898ce5771...
Russell Martin PE's
http://www.ebay.com/itm/RUSSELL-MARTIN-PE-Nike-Pro-Gold-Precision-Catchers-Leg-Guards-17-Royal-Blue-/170965598378?pt=LH_DefaultDomain_0&hash=item27ce5800aa