To busbar or not to busbar

[NinjaDeathMonk]

So here is a layout of a portable solar "generator" I'm working on:

Would a busbar help or can I just connect all the ring terminals to the inverter studs? Also, feel free to chime in about anything else. Thanks.

 

[Craig]

Im a big fan of bus bars they make life much easier you do not have to take everything apart to get to the bottom ring.

 

[gnubie]

That is nice.