If you were to buy 3 top products...

Soap- DG901, bucket/grit guard/mitt/drying towel

Detergent- Meguiars APC+ or Optimum powerclean

wax/sealant- Menzerna powerlock or collnite 845 or Duragloss 501, Optimum spray wax is easier to apply but won't last as long as the ones I mention

dressing- Meguiars hyper dressing or carpro perl

You also need towel, applicator pad and wheel brush.

You should be able to buy a combination of the above with less than $150 spent

 

Zep Citrus - Home Depot
MSUG - http://www.majesticsolutionsinc.com/purchase-page/featured/ultra-gloss
Collinite 845 - http://www.detailersdomain.com/Collinite-Liquid-Insulator-Wax-No-845_p_264.html

 

Einszettes Cockpit Premium
Menzerna SIP 1500
Zaino Z2

 

1Z Cockpit Premium
Menzerna Powerlock
Uber Super Drying Towel

 

Really your not going to be able to do it all with just three, ten maybe but not three.

Zep Citrus, Sonax wheel cleaner, clay and lube, Megs d300 and a Microfiber pad, Optimum Opticoat 2, Stoner Glass Cleaner, Cockpit premium and Optimum Tire Dressing