I went back to see what I spent on my similar set up. I bought my lift w shock on Black Friday and saved about a $850 to $1k
I spent $4,100 on my 6 BDS lift w Fox performance elite coil overs, with BDS beefy UCA's. " Black friday pricing"
I spent $3,500 on my 35 MT tires w fuel wheels installed
I pre-negotiated labor and paid a shop $1,700 where other shops quoted me $2,600 and $2,800 for labor.
I'm all in at $9,300 but could of easily been $11k.
I just looked up the stage 4 and if its around $4,100 they are taking you to the cleaners at that price, shop around!