Well the general consensus seems to be its a 'nice to have' as opposed to a neccesity, so thank you all for the comments. Eternal, your one looks just like the one I was looking at
Anyway, I decided I was doing way to much thinking and not enough doing, so as it was a nice day I decided to get the engine out of the donor, tomorrow if the weather's still good I'l start relieving it of all the bits that don't need to be there
