2003 5.7L Hemi Advice

I bought this engine around 3 years ago and now ive got around to do something with it. The guy I bought it from said it still ran when pulled from a Ram but had a burnt valve. Im going to pull heads obviously, however I have read that these can suffer from valve train issues such as valve seat failure, broken valve springs.

I would appreciate any comments regarding any issues experienced and any worthy upgrades while heads are off. Hoping to get away with not doing anything to the bottom end to keep it as cheap as possible.