Quick update, I've changed the mast step it now has a piece of steel pipe bolted and welded to the scaff tube so hopefully this will be more then strong enough
[URL=

.html]

[/URL]
I have found some longer bolts for the axle's so now I can fit 2 nyloc nuts on it.
[URL=

.html]

[/URL]
This is where the mast step fits into the chasis, it goes down about an inch into the coupling then bolted and welded. I think it should be strong enough.
[URL=

.html]

[/URL]
Just need to sort a bar out for the steering, as you can see I made a mess welding it (first ever welding attempts) I'm thinking of just bolting a peice of wood across the bridge of the fork.
[URL=

.html]

[/URL]