you can run this.....
its an OS....its 99 at tower........the only other thing you will need is a set of HPI motor mounts.....
you can wait a few days,and I will see if,out of ALL the billions of dollars of HPi stuff I Own,I see if I have a 12e motor new,or in nice shape..which I will sell you cheap....OR
you can buy this for 79.99....which,I think should bolt in with the motor mounts.....
you can go here and send in your old motor for a t15 engine(same as the tower engine,cheaper price,a little more hassle as you have to ship yours....)
is that enough choices?..