My tape was fine to reuse.
try little pry bar but dont force it. I think mine had 6 scews holding it. 2 on the floor and the rest on the firewall? Seems like some were hard to get too.
But your is a Class C so it may differ.
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor