Infill panels with freestanding appliances

[gaz_moose]

I've put this little kitchen in and it has freestanding fridge and freezer to go under the counter. i was going to put an end panel on the side of the drawer base unit then and end panel between the appliances. This leaves me with about a 50mm gap between the last unit and the wall, My plan is to scribe an infill panel but im stuck on how to fix it. If it was a cupboard i would fix the infill to that.

I obviously need to fix it to the wall but id like it to go in after the appliances to give me some wiggle room when sliding them in. 

 

Hafele Drawer & Panel Connectors Cream White 10 Pack - Screwfix I've seen these fixing that look like they are what i need but are they a fit and never come apart setup? As id like to make things a bit easier when taking the appliances back out again etc.. 

 

 

 

[Big Jimbo]

Batten on the side wall and Two part velcro. Easy on and off. Either that or magnet catches. Both available from screwfix i believe.

[gaz_moose]

as mad as it sounds, I quite like the velcro idea.

[Mike]

I've used magnetic catches myself. Works well.

[G and J]

I put such a small panel on normal kitchen door hinges so  I could it pop open when the need arose.  Velcro or magnets would do the job too.