No good , you need a 35v and at least 1800uf .
I posted a link which i can't find for you
Get the 35v cap from Jaycar , they only come in 1000uf so buy two and run them in parallel for 2000uf , make sure it's the low esr radial cap when you ask


Mounting a fan , just bend a piece of thin alloy 90o .Place the esc on it and then face the bent bit towards the solder posts , mount the fan to this and you will have it blowing at the solder posts .

You can make the bottom part of the alloy a bit wider and drill some mounting hole in it while having the esc attached to the alloy some how , maybe double sided tape and a zip tie for security .