ive taken out and re installed my plugs like 5 times in a week. not a big deal.
for old baked on wires, i like to wear leather work gloves, grab the wire end on the plug, twist it back and fourth, then rip it off. your hand will fly into something, whey the gloves are nice.
make sure your installing new plug wires too. (30 dollar parts store brand is fine) the old ones are old and dead and do come apart when ripping them off.
rocking the engine forward is a big help. i stand at the pass side fender and reach to the back to remove them all.