You wont fit a 1/10th buggy in a 1/10th hauler they are to narrow.
I would suggest the Fastrax Large Hauler as this is wide enough for 1/10th buggy but not massively tall. The only thing it lacks is the tool caddy in the top this is why its shorter.
http://www.fastrax-rc.com/rc-product...0004474&cat=ST