Fridge Battery

I am starting my first battery build to power an ARB fridge I use in my 4x4. I have been using a combination of Goal Zero Yeti 400 with a 100w flexible panel without issue but I built an ebike and caught the battery bug!

I saw some bike guys talking up the Littokala 5ah 26650s so I pulled the trigger during the 11/11 sale.

Heres what I have on hand:

7s13p of black Littokala cells
Mpt 7210a
7s bms
20a step down
3a axial fuses
Marine type battery cut-off
Bi directional meter with shunt I am not sure I need?
6 gauge bare copper for bus bars
USB/12v ports
1 kweld unit to spotweld fuses

The plan is to cram this into a Pelican case. I dont really use 110 much when overlanding but have a cheap inverter I might throw in there...

I have seen guys add banana jacks, led lights etc. but I want to keep the outside of the case as simple as possible because stuff gets knocked around while off roading.

I would appreciate any input as to what I might have forgot or other advice as I attempt to tackle this!

So cell level fusing is more tedious than I thought. I need help with a question please:

If I fuse one side so every cell has at least one fuse per cell, can I safely save some time and use nickle strip on the other side?

Yes, you don't have to fuse both sides. Some do it just so that they have extra safety. Using glass fuses, the chances of a blow fuse still making contact is drastically, if not completely, reduced.

Thank you, seems logical and man is this fiddly work!