Hi Boo! I applaud your effort, and also your ethics! Fantastic work!
I don't have any information about CheapFrills or Party Sims, but there was a site named Trinkets & Treasures that was once hosted by SimsHost. If I recall correctly the webmaster for that site was the same as the one for Treasures for The Sims 2.
I'll send you the contact info in a PM just in case that's who you're looking for.