hm, the machine came with 1 meg of ram, so I am guessing it has that part already. I guess its time to quest for super denise then 
Hello Runequester,
You can find some of ECS chipset on EPAY, but I don't know if these chips are 100% working fine (120587929031 + 120587921778).
You only need Fat Agnus & Super Denise + Kickstart 2.x or 3.1