I got HDadvance 2.0 works fine with all the games Ive thrown at it even recent ones the only one that gave troubles was shadow colosus, however cant sell it if you just need the files I can help you there
If you need an original because yours isn't modded then I coould load a mem card exploit onto a psone mem card and give to you with the corresponding game, for a 5er.
Or if you have a psone card handy and know which psone game youll use ill do it for free
HDD - Any Maxtor HDD will work.
Net Adaptor - Easy to find.
Mem Card Exploit - Requires a bit of your time and a way to get saves from your PC on to your memcard (Action Replay Max, for example)
HDLoader 7C Patched - Here