Pull Out Step part 1

I decided not to go for a drop down door (against advice from a few) my rational being higher security and lots of work required to drop the door in the position I wanted it (it would mean moving the battery box and air tanks)  This means I need a step system and I decided after seeing loads at Bad Kissingen to use Little Jumbo ladders.  I want them to fit the truck in three directions forwards, sideways and backwards. but also want a quick simple permanent ladder.
I hope the following makes a little sense:-

Framework for slide out pod with industrial sliders at each side.

Quick step which unbolts for full access to the battery box.