All you need is the OS .40LA plain bushed engine, half the money ...easiset to use/tune....my favorite engine...I do have a .46AX and it does run well.....but I got it used.....yet another aspect you should look at...any swap meets over your way?....Rog
My personal take is at least in the radio area,,you should get all you can afford at least 6-7 channels....