I had a 2018 Outlaw 29H and they had the Inverter placed in the drivers side rear storage compartment when the batteries were under the entry ages. Thor didn’t use the proper garage wire for that distance and they connected the (-) cable to chassis ground, which is not the best practice. For my application, the Inverter worked ok and I had not major issues.... but I’m sure there was a substantial voltage drop.
My 2020 Magnitude has the Inverter about 18 - 24” from the battery and it is directly connected. The voltage drop is minimal given how it is wired.
Bottom line..... it all depends on how much loaf you plan to place on the Inverter.
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