Borneowild product quite ok as they copied benibachi formula +-
-The 8kg soil will be enough to setup a 2ft tank.
-From your planning, only neocaridina type of shrimp is suitable, and your tank may have problem with green water and algae if under sunlight.
Algae is good for shrimps , just unpleasant as display tank but green water is not preferable unless you gonna breed malaya shrimp larvae.
-You can skip the Humic and Vigor since your tank is not gonna house CRS type shrimp.
-Just get the soil , minerax and bacter crystal.
- Put bacter crystal on tank bare bottom , put a thin layer of soil around 1cm , then put minerax , after that cover with the rest of the soil.
The above is base on the stuff you listed.

Any budget and what your ideal tank size?