the most difficult part to get hold of is the gearbox, apparently the bellhousings can crack and while there is a fix, you can't get them anymore so you need to perform some "engineering" on them

spoke to autobhanstormesr at a show a few years ago and they had a few of them on the stand, just as i rememeber them when the local vauxhall dealer down the road used to have one parked up, but £49k for a car back int he day was about half a house