i bought this rci on ebay for around $230.00 it fits in the hole of the orginal stock sell on my bug (59) perfect width wise but its to short length so it doesnt take up the entire orginal hole 12gal alum, i made up some aluminum straps to hold it in place once its in i can post pictures. i dont know when that will be those its rather cold out these days
when i orginally purchased it i just measured the hole and searched until i found something that would fit this was the best i could come up with. beats the cost of having a 2k custom tank made up.