the connectors pop out fairly easy. squeeze and pull the engine side harnesses, then squeeze the clips and push the bulkhead in. might also want to warm up the plastic with a hair dryer. don't get it too hot to where it will melt, just enough to help make it pliable and soften any old dielectric grease. we know how cold it is up there 'eh.
As for the instrument cluster, you might want/need to drop the steering column down an inch or so (sorry, 27mm or so) to allow it to come out of the dash without scraping the top of the column.

Todd