You can get the leg levelers far cheaper from Bob Roberts.
That IS the price from Bob with shipping. I added the sipping for the levelers and the corner guards to the total for the levelers. Here is the breakdown:
Item(s) Purchase Price Shipping
T-molding (20ft Black 3/4) $7.50 $6.50
Corner Protectors (4) $12.00 $0.00
Leg Levelers (4) $3.00 $6.00