[palla]

Just caught up with this thread as I feel that I could be going down the same track. With regard to the welding of the suspension, the angle of the shackle is important, it needs to be at an angle. If it is verticle it will not swing causing vibration/shock up into the tray. Just something to pay some attention to.

Oh yeah & run any wiring in metal conduit for protection. Good luck, I am enjoying the buildup.