I hate fuses, particularly inline fuses unless absolutely necessary like at battery terminals.
So why use inline fuses when it would be much easier and also probably as cost effective to use a breaker/switch panel. Here is a 4 gang switch/breaker panel with push button breakers:
https://www.amazon.com/dp/B000XBB8M0...ing=UTF8&psc=1. They also have 6 and 8 gang panels.
For $50 more you can get a better one with integral switch breakers like this one:
https://www.amazon.com/Paneltronics-...706032&sr=8-16
Back to your original question, yes you can tie into the DC after the solenoid. It is probably 8 gauge so just match what is already there and you will be fine.
David