Nissan Patrol 4x4 (Africa)

Afternoon

I am looking for ideas to attach my inverter to my patrol. I have the trailboss 300w. But the problem is, that it has no bracket or holes that I can use to attach it to the vehicle
I am not too fond of the idea of drilling holes in the inverter and don’t think it will be safe. I toyed with the idea of Velcro tape, but it won’t really hold it (especially if you try to push in a 200v plug).

Any ideas what I can use?

Twee plat staal straps met n stukkie rubber onder sal mooi werk