Phil, I think you are missing the point mate...
Plenty of good info has been put on this thread, you just need to disect from it what you want. For example, you have seen my video, and agree that is the performance you want. So, what did it cost, for say a £50 budget.
OK, the link to the 12v graupner 700bb turbo I posted was £24.00, however the non bb was £15 I think, without having to read it all again!. This will take up to 14v, as mentioned earlier, the best battery combo is 2 x 7.4v, (min 3000 packs to give an acceptable run time) wired to give 14.8v, so now you are at max volts and max performance for the 14v motor which with this combo will run forf15 to 18 mins approx. Those batteries will prob cost £12 each approx. Dont buy 2nd hand here, not worth it
The link to the esc, its a 14v esc, so you are ok here. THat ebay seller regularly sells mtroniks stuff, I think there is a link to mtroniks. Expect to pay £25, thats what I paid from that seller, just keep watching, so now up to £52 excluding postage, which is your budget.+
AS a comparison, mine will be faster, with the bb motor at 19v, and my batteries cost me £60, 2 x 4600 9.6v, the 4600 give it a longrer run time.
It is a matter of what you want to spend, but at least you can see the results, it took me over 12 months to achieve that performance. Now... here is something, on thursday I am testing with a 600 bb speed turbo race motor, with will be on 9.6v, so if that works equally well, that will be a cheaper option for you