I just had a quick look at Tower for the 160 two stroke and its value is $US299, a 4 stroke is about $US400 if you are talking about two stroke what about a gas motor? http://www3.towerhobbies.com/cgi-bin...?&I=LXNRH4&P=0 means carrying another fuel container but its mixes at 100:1 so there will be little slime one would hope?