As you can see, I couldn't let go. After some serious words with myself, some advice from a few chaps on here (you know who you are, many thanks) and even a pep talk from my old indy specialist, I managed to get Larry "the HPE" to Neil over at Project Lancia.
What was potentially a bit of an big issue, after some digging and testing, the dash warning light issue was the after market alarm which has now been removed and the non running is a vacuum pipe. Fingers crossed with some more slight fettling Larry will be running like a dream again.
Then it'll be on to the rear damage