Larsenld

Ive been looking at this kit to convert the air suspension https://www.strutmasters.com/products/2000-2006-lexus-ls430-4-wheel-air-suspension-conversion-kit-td14f/ does anyone know if this is any good or is there is any better ones that are a little cheaper or in the same price range?

So I’ve been looking at this 2005 ls430 UL I know the air suspension is a big problem a lot of people have. Is this a sign it went bad? They said it had been sitting so I was wondering if that’s why it’s squatting