Taking the easy road and doing a SAS should not be in the same sentence. Even doing it simple with leaf springs there’s a lot of variables , on top of the axle you need to address.
Steering
Brakes
Spring rate
Shock valving
Drive lines
Frame reinforcement
Upgraded axle shafts
Gears
Lockers (A solid axle swap would be almost pointless without lockers)
you would be amazed how quickly simple stuff like bolts and hardware will add up . Really sit down and write out every part you’re think you’re going to need to do a solid axle swap figure out the money that will be involved and the time, Then double that budgets and triple the time you think it’s going to take is definitely a more realistic way of approaching a major project on a vehicle.