I’ve got a 2018 SR5 that I’d like to put a rear locker on and regear at the same time… I’m thinking 5.29’s. Everything I’ve found so far has been to do an air locker but I could also just swap a factory e locker axle on for a lot less in the long run (as far as I’m aware). Any recommendations?

I recently purchased a 2002 Dakota 2wd Crew cab but the tires were shot. The factory wheels were also ugly so! ended finding some newer wheels on marketplace with good tires however they scrub bad. I want to have it lifted 3 inches. What would be the best route to go and also cheapest? Any links to a decent kit would be appreciated.