I would start using penetrating oil on the hinges now and use lots unless you know they will move. Most are seized and just bend, then you need new ones.
The fuse panel comes apart at the firewall. There are a couple small screws in it and one big center bolt on the engine side that pulls it all apart. You end up with a dash harness piece, a tail harness piece, an engine harness piece and a front light harness piece.
If you need any light plugs or sockets, a harness from a full sized GM van that hasn't been open to the weather has all the same parts.
Here is a link to the FSM for the 84-86 that should be real close to yours: 84-86 Factory Service Manual... - JeepForum.com
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com
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