Thanks Everyone...Based off that website's calculations my ST Pro seems to be the likely candidate to convert to brushless....
Of course though I wouldn't run it wide open like that at top speed for more than a few seconds...not enough room too anyway,lol...
Also Looks like I should keep 13,14,15T pinions on hand though to adjust to different conditions.
Using this here http://www.teknorc.com /product_info.php?products_id=964
TeknoRC says I can keep my mechanical brakes, that'll take a little stress off my electronics and I also plan on running a cooling fan also.
I really appreciate everyone's feedback and advice!
Once again this is the #1 Website for Help