2008 Chevrolet Tahoe

2008 Chevy Tahoe PPV with 120k miles. Previously owned by Oklahoma City Sheriff's Dept (Sergeant's personal work vehicle). Black with black interior. Very meticulously maintained. I have a service binder of all repairs and service records. New tires, front and rear brake system, engine mounts, TCM (Transmission Control Module), and more. This Tahoe is very fast! However, recently it began to tick, so I have it stored to prevent any further damage. I haven't had it properly diagnosed yet, but my suspicion is the infamous AFM lifter failure. I purchased the complete kit to replace the top end, but not mechanically inclined to install it. Again, I haven't had it diagnosed as being the actual issue yet. I have way too much money invested into this Tahoe to make it financially worth it at this point if that is the issue. If interested, I am throwing in the kit, along with extra parts including police spit lights. This is a perfect mechanic's special. I want $10k firm, or trade for a running squarebody Chevy C10/C20/C30 or blazer.