Made some good progress last night.
Bearing in mind I lost the wiring diagram and pin outs for my loom (doh)
I managed to get my headlights working (mostly) using sierra stalks.
It turns out there are two types of sierra stalks the late one are made for connection to switch negative relays. The old ones (pre 87 I think) were for switch positive (direct or via relay depending on light circuit).
Long story short I had later type stalks but my loom is set up for switch positive relays on each lighting circuit (It took a while to come to this epiphany!) Luckilly I also had some old column switches as well from my TVR (but only the wiring from the new ones) It took a bit of time with a multi meter but once I worked everything out it was quite straight forward.
For the front headlights I just need to put a perm positive to the full beam flash.
One question when you click full beam should it turn off the dipped beam on my tin top both stay on but they are separate lamp not like the H4 bulb which does both.
Still good progress!