I went with the;
Brand Name:VariCoreCE
Weight:5.25kg
Size:174*72*205mm
Model Number:3.2V-280Ah
Nominal Capacity:280Ah
Type:LiFePo4
I got these through AliExpress.
I bought separately, two "4s BMS 120a LifePo4 Battery Management System for 12v DIY Batteries, Programmable, Bluetooth Included."
I got the Cerbo and GX 50 Touch.
I bought the Victron thru InvertersRUS and they programed to match my BMS's/batteries. I also bought water tank heaters for the batteries that I will manually operate as I do not have circuits that need maintaining.