Go on...you know you want to!
I think I've managed to do this time what I didn't do with one of my Cosworths,which was to come up with a decent plan of upgrades and to cut out some of the ones which are really just tasters for the next decent step.
If I'd simply saved the cash and had the Sierra's engine rebuilt for 440bhp in the first few stages,I would have saved a lot of money overall.