the way my friends is mounted is just metal straps bolted to the bottom of the frame and then ran under the tank and bolted to were the arrow is in this pic and theres 4 straps holding it
and as for pumps you can go to almost any parts store around here and get the pumps that mount along your frame. for example
http://store.summitracing.com/partde...5&autoview=sku and just wire it to a toggle to refill the main tank. Now that I think about the idea i like it if my jimmy didnt have a 32 gallon tank in it i would probally try to set something up!