I totally agree Ian, sadly others don't see it like that but there is so many times that you want to keep replacing boxes then you may as well of spent the extra and used something suitable in the first place, time is money and for you if your racing its not worth using anything than the best you can afford.
5k is a good price, however I don't have that sort of money at the moment, 3k is around my budget for now so I either wait (which tbh is probably best) or settle for the Glebe whilst its about but it is a bit of a grey area it would seem.
The engine IMO was cheap, if it ever grenaded itself I wouldn't be that fussed, everything is simply ready to bolt onto another stock engine and would give the same hp, give or take a few possibly. I've invested a lot of money into this car (in terms of what I earn) and I don't see the need to cut any corners really, you can get away with a lot of stuff to keep the car fast and reliable but the gearing would make the car.
I've spent 3 years on and off throwing money at bits so if it took a bit longer I really don't care, I'm far from completion but a lot nearer financially than I was a year ago but still want to spend my money wisely which is why I was looking for advice.