I was recently researching similar things. I found this article on four ways to install an inverter. I found the information to be very helpful. The method that looked the best to me was wiring a relay from the inverter to the converter so when the inverter goes on the relay automatically shuts off the converter. The article does a pretty good job explaining it.
What I have decided on doing is installing the Victron multi plus. It is an inverter and charger/converter. It will replace my oem charger.
I hope it works out for you, let us know what you did and how it goes.
EDIT-your 100 watt solar panel probably won’t charge a 4 battery bank very quickly or it may not be able to fully charge it.
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Mike
2017 F250 6.7 Powerstroke FX4 crew cab
2016 Hideout 24BHSWE (27 foot TT)
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