It's actually not that hard but will take a full days worth of work. The most important and delicate part is the prepping. Make you clean them and get all the grease out of not paint will not bond correctly. Removing everything is super easy just use a thin flat screwdriver and those small plastic ones they are sold in any auto parts. Use a cloth underneath the screwdriver to prevent any rips.
1 I just wet sanded all the parts in my kitchen sink
2 dried them really good
3 cleansed them with alcohol or any pre paint cleaner from homedepot
4 remove any particulars from cloth and once is completely dry it's ready for paint
5 I didn't even use primer I used that Krylon 2 in 1 spray cans that have primer already, did 4 thin coats let each coat dry about 10-15 minutes between each coat.
6 I did 2 final small coats of satin clear I didn't want to use glossy. You can go with a Matt finish too it looked super nice.
Let them dry for 24 hours and ready for install.

It's honestly super easy and fun.

The hardest part is the center consule and shift knob. I was too lazy to remove everything so I just really carefully masked the whole center console and seats and dashboard everything with plastic sheet because the mist from paint will go everywhere. Just do small short thin coats to not have over spray everywhere.

The shift knob it's super easy to snapp it off there is a video on youtube. This one I did do several coats of color and Matt clear because you grabb it every day so it needs a thicker coat.

About the cracks I would recommend a thin body filler.

Over all a great change inside the truck it looks and feels like a new modern truck and only spend like $35 bucks compares to expensive trim