P38 All Assemble after head gaskets, but its just clicking from relays in fusebox

Hi
Its taken me a while to complete this job, mainly because i have a P38 which i can drive around anyway.

Bought this as a project, with it having a LPG kit on it. So as title states Ive arrived at the moment wheres everything is back together, fitted my battery, everything lights on dashboard, but when i go to start it, its just clicking from relays in fusebox, i've also noticed that my puddle light goes off when i turn the key to start it.
Im going to check starter motor with my meter, could this have siezed during the long period of doing this project.
I couldnt hear my compressor clicking on initial ignition switch on!

Advice please............Colin

Bad earth connection? Dead battery?

Hi
Cheers! battery off my other P38, i will check my earth lead.

Hi collin,
Check all the earth straps..............especially the one at the rear of the head to the firewall, thats easy to miss!!

Hi
Would that earth strap be a really flat one, i do have one which im struggling to find the anchor point, thought this maybe LPG related, and wasnt to worried one it.
the previous owner had started to dismantle this job, so i did expect to miss some connections.

jump lead from earth on battery to engine to check if bad earth .thats what l did started first turn made new earth lead couldnt find the old one so made new one then a light weight one from battery to body everthing has been ok since bloody annoying at the time only had the car two days. that was 15 months ago