Would you be willing to share what the project will cost?
I can spew off a few numbers here, round about. Granted, I bought a lot of things cheap on AliExpress and waited for the slow boat to deliver. A lot of those items were about 1/2 off compared to Amazon.
Contico Case - $40
EVE 280ah Battery cells x 16 - $2450 (Paid $2112 for my cells shipped from China - These were shipped from the US).
BMS - $200
Class T Fuse holder & Fuse - $80
Circuit Breaker - $ 20
85mm Bus Bars - $2 each x 9 (other ones included with batteries)
On/Off switch - $25
Shunt & Display - $ 17
350A Anderson Style Connector Pair - $25
Battery negative Post - $18
Terminal Blocks - $3
1/0 Cable - about 5' - $17
Cable Lugs - $9
So, that totals $2922, round up to $3000 for misc other things (foam, tape, wire ties, small 18ga wire, etc). Hope I didn't miss too much.