Honestly, your setup is not the greatest setup for what you want to power with that inverter. If you had 1 more panel you could probably do a 3s/2p panel setup and that MPPT controller would let you produce a LOT more usable power.
If you could get 1 more panel AND 1 more battery, you could do a 3s/2p and a 24v system with a 24v inverter dropping your wiring and fuse down to 150a size.
If I had to choose 1 option though, a 6th panel to get that sweet 3s/2p setup would be my choice.