The faster you get the brake fluid off of there, the better, it will eventually eat the paint off, maybe melt the carpet. If it's gonna take awhile to get a new slave and master, I'd clean up what I got and try covering it with aluminum foil or something. And hope it isn't completely eaten up.
Unplugging the low bulkhead connector in the drivers side firewall and unscrewing the fuse block isn't that big of a deal. Remove the drivers side kick panel. That will give you some slack in the harness.
Cleaning the dielectric grease out of the connector is a pain. I can't really remember if the bulkhead connector comes out to the inside or the outside, you may not have to disconnect it and can pull some of the lower engine bay harness into the interior.
I'm thinking the large dash harness has more than a few direct connections to the fuse block. Getting the spade connector females out of the fuse block is doable, but a pain. I found a little kit of removal tools for the spade connectors at the help counter at my local parts store.