To the OP. You have a 2019 Alpine 3700FL. The Alpine 3701FL is a "mirror image" of your floorplan. The only difference is the "gas/electric 18cuft refrigerator" in your 3700FL model and a "Samsung 18cuft residential refrigerator" in the 3701FL. Otherwise, the two are essentially "the same trailer". There are subtle differences, likely a slight difference in overall weight, pin weight, the inverter wiring and additional battery to power that inverter along with the additional electrical plug/circuit breaker on the power distribution panel.
According to the Keystone website, the refrigerator in the 3701FL is described as: •Samsung residential refrigerator (mandatory on 3021RE, 3321MK, 3401RS, 3501RL, 3651RL,
3701FL, 3711KP, 3801FK, 3851RD)
https://www.keystonerv.com/fifth-whe...l-fifth-wheel/