I am looking to buy
menzerna IP
klasse SG
lexol leather cleaner and conditioner
maybe some vinyl cleaner/conditioner
maybe some clay
maybe some new pads

Where is the best/cheepest place I can buy all this stuff. I know about autogeeks 10% off clubmember thing but I dont think they have menzerna IP. any other suggestions?

I buy my menzerna from pakshak.com which has amazing microfiber towels as well. They are located in hawaii, but their shipping is usually very reasonable.
You can also get menzerna at topoftheline.com and properautocare.com, all 3 are great vendors.

should i just buy everything else at autogeek then?

10% is pretty good. I would.

Autogeek doesn't carry Menzerna.