Power windows for A-bodies

Has anybody ever installed these?

http://cgi.ebay.com/ebaymotors/XV-M...014QQitemZ330287350849QQrdZ1QQsspagenameZWD1V

Any comments?

Anybody ever purchased items from the company that make them?

http://www.xvmotorsports.com/

I sure would like to have power windows but geeze...for $1000 they better be darn good. What do you all think?