Awesome idea guys!
I used this thread and
this video on YouTube as a guide for making one also. I ended up getting a
Kincrome saw horse, because they were very sturdy and have locking pins, and I used this
Formrite sheet for the top. The piece of wood that came with the saw horse I used to brace the legs to the top and bolted it all together.
It came out pretty good, folds flat and is very sturdy, it easily held my weight 6'2" and 100kg. Total size is 1000Lx600Wx780H and it weighs about 7kg at a guess. I still need to do round some corners, do some sanding and cut a handle into each side, not sure if I should paint the top board or cover it with marine carpet.
Anyways here's pics, thanks to everyone in this thread for the inspiration.