Walking beam to leaf air swap options

Hey guys I’m looking to upgrade my 94 t800h dump truck to a better ride and full lockers and a bit lower gear From my 3:90s to 4:11. Currently have a 46k Hendrickson walking beam rte. what’s the easiest and best option to swap it with. I was thinking a neway air leaf or maybe a airliner. Trying to drill as little new holes as possible. Cutting the frame is not an option I will not do that. If any of you have done this I’d appreciate your input. Thanks

 

Already looked. They want 12 grand just for the kit. I can get a whole clip witn new gears and full lockers for 9k

 

She’s a single thick wall frame. I don’t want to cut it. It’s staying as one. It’s easy enough to just swap over the new suspension

 

If they were more reasonable price wise I 100 percent would do the dual bag kit. But it’s over ten grand and it’s literally just some bags and a few other things. Way overpriced for what I can get.