I firmly believe the Bilsteins are the way to go , mine @ +2.8" for about 9k now & zero issues , maybe I'm biased , nevertheless it's a well proven way to level !
I can't imagine going with spacers after reading Brandonjanson 's & AustinB 's threads ... and hearing too many bad spacer stories .
I also think better UCAs are cheep insurance.
Not sure I'd go to a 4x4 shop for work if they say you wouldn't need an alignment though.
Know your limitations , but if your capable Sir you'd be well served doing the Bilstien's yourself , overall I believe ive read more stories of the bils being installed improperly by the " professionals " as opposed to the competent DIYer ..... I'd rate the bils & Mevotecs install as a 3.5 -4 out of ten on difficulty. ..
Good luck to you Sir !