I think you will want to look at good stands. Maybe a good strap and strap locks. Get a pedal tuner. Just about any one of them will do. But I think the best tip I can give is to learn how setups work. Whether you do them yourself or you have someone else do it for you, you need to know how they work: brokeassguitars.com

Ernie Ball Strap Blocks is my solution.