Honestly dude, unless you have an OS 30 on hand I wouldnt buy one. They arent all that powerful compared to some of the cheaper .28 and .32's. They are over priced if you compared it to other engines in that price range, and you would be getting a lot more power for your dollar if you went with something else. If you are gonna spend $250, buy a novarossi XS or a axial .32, either one you would still have cash left over for an exhaust and in the end would have more power.

Just for comparison, the axial .28 spec 1 makes more torque than the OS .30, and for almost $100 less.

Also, glad to see that you will be going with the LST setup. Good luck with it.