would like to do a solar panel or 2 to my Bounder . going to add 2 more 6volt batteries up front ( total 4 ) and have a 2000 watt Harbor Freight inverter . Where can I get panels on the cheap and how much watts should I look for

PM Squatcher on this board... I think he can get you started.

Socaldmax has a panel and a controller for sale. PM him.

How much are we talking in cost for a solar panel just to trickle the batts. while trailers in storage ?

$60 at AutoZone.

Or a real solar set-up with a good panel and controller is 800 and up. Just depends on the panel.