Sure, no problem.
the cheapest one I know of and own is the one from Hobbyking. I´ve been running on it on FOC since day 1 with no problems. I´ve tried an SK3 5065 280kv and 236kv - both with no problems at all. Plus, it has a 1 year warranty - so you´re covered pretty well (especially when you´re on a budget). And of course - China aint so far away…so you should´nt be waiting too long for your VESC.
Once you have the VESC it´s important to configure it via PC. You´ll have to download the VESC TOOL (you´ll need an account on thier site first) to configure your setup (motor,
remote control…etc) You´ll only need to do this once until you change anything in your setp. If you do change anything, you´ll have to configure your new setup before you hit the road.
I recommend you read the VESC thread in the forum while you´re waiting…it´s a lot to digest but you´ll get it soon enough…