yes that should be the fuse box, 4 in there, if people have been fiddling you may find the odd in line fuse in the loom, I did.
most of my dash was off iirc from when I swapped the bulkhead out, nothing worked afterwards so I had to go through the electrics
getting the ignition connected right was the first thing I did, then just did one thing/circuit at a time, as you get each bit working it spurs you on
worst bit was getting the tape off the loom to follow the wires, had no choice as some colours would go into the taped up bit and not come out, and some colours came out that hadn't gone in