Nice! A 7 mm plate to cover the studs (32 mm total spacer) will give about 2.25" lift from the motion ratio I calculated. 10 mm plate (35 mm total) gets you 2.5" lift.
I believe that a 25 mm spacer will not completely cover your OEM top mount studs (about 7 mm of stud will protrude above the spacer surface). So you'd have to cut them down flush with the top of the spacer to be able to install the assembly.
Keep us posted.
2" kit only uses spacers of whatever thickness needed according to the suspension motion ratio to achieve lift.
3" replaces the entire OEM strut top mount and pre-loads the coil spring (makes ride stiffer) as well as being thicker overall to lift the front.
If you want a level truck and haul...
Pacbrake near Vancouver (BC not WA) should be doing a leveling kit and rear air spring kit. If you're in that area, get in touch with them about being a test truck (in the past they've given free kits in return for test fitting/measuring your truck).