That should work fine. Also make sure to have good connections to the battery and the inverter. AWG 6 (100 amps) or AWG 4 (135 amps) battery cable can be purchased with connectors on it if you can't do your own. They will cost a little more but you'll be sure of getting good terminals.
Something like this:
4 Gauge AWG custom made battery cable assembly which includes your choice of lugs crimped to the wire with adhesive lined heat shrink to seal the connections. The copper conductor features stranding which is tin plated to resist corrosion.
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It won't hurt to use dielectric grease around all the connections either, dielectric grease is an insulator and it will keep moisture and corrosion out of the connections:
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