Randall. This is a big task, yet in steps very doable. On my 40pluns year old boat with out knowledge of the rigging condition, I chose not to go up the mast and have it removed from the boat for inspection and repair. Glad I did. The spreaders were wood. They had not been cared for. When on the hard, a squeeze to the spreader was like squeezing a sponge. Validated my plan of not going up an unknown mast and rigging. It is much easier to inspect, clean, repair/replace mast parts when it is laid out at waist height. I did a complete refit of the mast and rigging. Made changes to the running rigging systems, installed new antenna and coax for the VHF/AIS systems, rewired all electrical adding LED mast head lights - steaming/foredeck light, and lowered a radar dome so I can install a new cutter stay.
It is also the time to examine all of the rigging components. Additionally (while the mast is down) remove, inspect, clean/replace the chain plates. MaineSail has great info on re-bedding of deck hardware.