my 3 skewer rotisserie design is cloned

[woodpelletsmoker]

http://allchinas.com/spit/roaster10eBay.jpg
This is my 3 skewers Rorissrrie.
I am making and selling it since March 2012.

I just find this on eBay. http://www.ebay.com/itm/Rotisserie-add-on-kit-for-Weber-kettle-Grill-and-some-gas-grills-/181077980801?pt=LH_DefaultDomain_0&hash=item2a2916b681
Its price without motor and center skewer is $99.99 and shipping is $12.95, total is some $112
I can do it @$30 and mail cost $30. total $60

My price of motor and 3 skewers, the full system without middle section is $60, mail cost is $50, total $110.

I can add 2 support legs and bases of legs, then you can use it on Weber and kamado, full system of support les, motor, 3 skewers @$80, and mail cost $70, total $150

[woodpelletsmoker]

http://allchinas.com/rotisserie-weber.jpg
This rotisserie can be used in Kamako or Weber.

2 side skewers and links, screws $30, mail $30, total $60. This can be added on your existing Kettle Rotisserie.

3 skewers, links, screws, bracket, motor $60, mail cost $50, total $110,This can be mounted on your offset

3 skewers, links, screws, bracket, motor $80, legs and leg supports mail cost $70, total $150. This can be used in your Weber and kamado

Diameter of main skewer $10mm, diameter of 2 side skewers 8mm
Length of main skewer 26". Length of side skewers 17" or 20"
Size of support legs 15x15mm and 10x10mm square, height stepless adjustable to 30".
Motor 12 VDC with AC/DC adapter