Al have the slide lock AND I also ratchet strap the fridge down as well! Belt and braces maybe, but it has not moved, OK have to tighten up ratchet strap occassionally. Would be relunctant just to rely on one of them
Engel is situated behimd the drivers seat in my 110 going length ways into 110 so it is accessible from doorway. It is mounted on ali plate. Underneath that is my 70 litre water tank. When get my 110 back, the water tank will come out and the hi lift jack/ground anchor etc will reside under the ali plate.
In the rear I have the MSS box and roller unit in the load bed like you. Left hand wheel arch there are the stacking MSS boxes. MSS does great kit
HTH
Regards
Brendan

