How to delete this lift

For future proofing purposes, there are shops that make custom springs. Here it’s called az springs, they make springs for applications outside factory use, us. Last time I checked it was less than or equal to alcan prices, no shipping, but they custom built them to your payload/lift requirements. This shop does a lot of ambulances. I have not gone this route, but it’s my intention to when/if lifting the tundra. Another lifting option is to use newer model tundra springs from heavier trucks, same principle with Land Cruiser springs lifting 4Runners. The only spacers I would use are the 1/4” rubber ones to even things out. All other advice is top notch