Hi Rob before I quoted on the job I rang the dealers and some specialists, the cheapest quote was £2250 inc vat, due to gas conversion ect. There job time was 14.5 hours and included all genuine parts and machine shop charges etc. I quoted £1725 inc vat. Customer said that was the cheapest quote. The parts alone was just short of £550 all dealer parts though. The heads were pressure tested and skimmed at £256. It took us 15.5 hours so not bad for first time. I think you would have been undercutting your selves at £900/950. Autodata gave 12 hour job.

Regards

Keith