Sounds like the PCV filter is good but heck change it anyway. It is pretty inexpensive to replace.

I haven't done my hubs yet but they are planned for this spring.

As for T-case fluid I would recommend getting a small hand pump to fill it. OffroadX post instructions at one time on here so do a search and you should be able to find them.

I did my brakes last year. They will run you about 50 bucks at Checker Auto parts for Raybestos pads. They are simple to do. In fact, purchase a Chilton/Hayes book for the year of your truck and you should be able to find instructions to help you do all the work you want to do.