Replacing the seals is now easier and cheaper.

 

This is fairly old news. I purchased the tool and have it on hand, but have not used it yet. I made a bulk purchase from AGA that includes: Coolant transfer pipe, valve stem seal tool, secondary air port cleaning kit, valve stem seals, valve cover gasket set, valley pan, spark plugs, secondary air valves, misc. seals to complete all projects. Total cost about $2400. Now I just need to free up a large block of time. My engine developed all faults within 6 months of each other. 122k miles as of now.