A revolver [usually] has a rifled barrel. ALL firearms with rifled barrels that you wish to shoot, as opposed to admire, require a Section 1 FAC and all that goes with it. For the purpose of this context I'll ignore that in the UK even an airgun is often described as a firearm, particularly by police authorities claiming them as such when portraying the successes of arms amnesties.
1. Full membership of a gun club - this is even BEFORE you can apply for your FAC. Just don't be in a rush.
2. A secure place to store it when not in use - displaying a Section 1 firearm, even an antique, is a no-no in this country. Commercially-made gun cabinets of a size to hold a few handguns are not expensive.
Everything else has been covered here in the posts above mine.