I’d recommend the following set of tools:

• Cordless drill (any major brand is fine, I like Milwaukee)
• Hand pull saw (whatever is fine)
• Set of decent chisels (Narex is great value)
• Corded circular saw (Makita 5007F is a great choice)
• Random orbital sander (DeWalt has some fairly good budget models)
• Clamps, clamps, more clamps

Most of all though, get good wood. I actually strongly recommend starting with plywood primarily if you don’t have access to quality lumber since you won’t have to do any surfacing.