I do like some of these guys and run a slightly tighter than stock gap (around .045-048) to allow for an old ignition and gap erosion over time.
25's are my choice as well.
If you have a quality ratchet (which requires little movement before it clicks - good for tight spaces), a short and long wobble extension, an air tool (ball in socket) universal swivel joint, and perhaps some spare fuel line, you should be all set.
I like to neverseize the threads. Copper neverseize conducts a little better than alum, but alum is common and works fine.
Good luck.