Different VEX Games for 8ft x 8ft field?

[Bluejackets]

I am going to teach a robotic class next year using the VEX system and curriculum and I am looking to buy past games or game pieces that work on a 8ft by 8ft playing field.

I have the "swept away" game and I plan on ordering the "Skyrise" game for our 12ft by 12ft playing field.

I spoke to the VEX people today and all the past game pieces are all discontinued and no long available. For example...... "Barrel Blast" and "Round Down"

Does anyone have a source or other ideas as to where I could purchase past VEX games for an 8ft by 8ft playing field?

Thank for your time and help!