Hi Aiden,
Thanks for including that one.
One major thing to take into consideration is rail distortion due to the welding process and how to eliminate it.
I must say though that with welding gussets into place introduces another issue and that's corrosion between the two metals that are now together "until death do them part".
Sadly capillary action will draw water and moisture in between the two pieces and the process of rust will do it's magical thing. I know that this will take quite a long time depending on how the mower is maintained over time, eg. keeping water away from it at all costs.
One thing I will say though and that is those rails will be far stronger now than any original twin rail chassis would've ever been originally.
Once again, nice result for a machine that was destined to go to scrap.
BTW where did you manage to score another rear roller and handle bar assembly from ? maybe around the Parafield Gardens area ?
Cheers,
BB.