Hi Duncan. Thanks for the reply I will use both an anderson connector and fuses and contactors at both poles. I was keen to use the anderson connector closest to the battery and then fuses, shunts, and contactors in a control box immediately after that but wasn't sure whether I would be violating LVVTA guidelines by not having "fuses as close as possible to the battery but outside any venting battery box".
I already have an anderson connector and one 500A fuse but need another So I am very interested in the one you have. What rating is it and how much would you like for it.