Update: Got the distributor today, fitted it all fine, ticked over but not starting! Trying playing with the firing order with the two set ups and it started for about 6 seconds but as soon as i stoped revving it went dead.

Cleaned and tested all the spark plugs, there's fuel and spark but wont tick over

Managed to get a compression test which im borrowing so will know tomorrow if it's something sinister. If it is the CVH is getting binned and a nice 1.8 Zetec is going in it's place