The hyd tensioner install went good except the engine was full of condensation from short trips, the owner only rode 4 miles or so a day back and forth to work. The sludge had the consistancy of Miracle Whip and the hydraulics didn't like it.
You can clean that pinion shaft up pretty good with crocus cloth or super fine emery cloth.
Check the pinion shaft runout while you're at it.
Get all 3 kits, the install kit has just about everything you'll need but you'll need the shim kit too. The cam plate kit includes a new high psi oil pump.
Disclaimer : Don't believe anything I say unless you are absolutely sure that I know what I'm talking about .