Doing glow then doing it at a minimum in quality I would go for this engine:

http://www3.towerhobbies.com/cgi-bin...?&I=LXKF99&P=7

and you will not be sorry later. Also note this TT uses the rearward slant needle just like the AX's and that's a great thing as someone already pointed out.
In addition the best advice also was that to find a club first before making any purchases. The most important person that will be involved with your success is after all your mentor/instructor and these individuals are almost always left out on providing any help on your purchases and if you think about that is just plain backwards.

Another thought just occurred to me and that is that the majority of folks I have mentored into airplanes that were also into cars found that airplane soon became their primary interest and perhaps you should spend not so much on that Rustler VLX to provide yourself with better choices for your airplane(s). Especially the radios and engines.

I added that (s) on engines as you soon find this can become a lifetime passion with never enough aircraft.

John