The main difference is the finished looked of the lines. The Complete Easy has broken or dashed lines. The Pro kit has continuous lines. The Pro Kit also has the dashed line below the Free Throw Line and an extra 4 feet of stencil on each piece behind the hoop for out-of-bounds lines to meet.

50' x 84' for a full size court, including jump circle and out-of-bounds lines.

11-12 cans to complete 2 half courts, jump circle and all the out-of-bounds lines. 

Therefore, if you're only doing a half court, jump circle and out-of-bounds lines, then it would take 5-6 cans.

Marking Paint? FALSE! We highly recommend using solvent based upside down striping paint. This type of paint is used to stripe parking lots and is very durable. When sprayed on the stencil it will not bleed or leak under as it does when rolled on. It leaves a clean, crisp line. 

Several courts can be sprayed. The less paint build up on the stencil will enable it to be used a number of times. 

2"