I spent a hour walking around the local wreckers looking for inspiration on rear shockies and came across some adjustable coilover shocks off a L series Subaru stationwagon. They are the right length for what i need, they have a good amount of travel and they are adjustable if needed. The original lower shockie mount is a rubber bush pressed into the lower arm so i will remove the lower arm and replace that bush with a press fit solid steel insert cause the lower bush on the shockie is already rubber so no need for two rubber bushes.
If all goes to plan then during easter I have a friend coming up from Dunedin that is a certified welder and he is going to TIG weld the frame up for me so i spent all this weekend making up the gussets and tidying up the joins etc ready for welding. This picture shows where i will be mounting some foot pegs