I just installed my struts using the no spring compressor method last night. Link below for a good write up.
OME Install - no spring compressor - Toyota 120 Platforms Forum
I have used this method several times and it has always worked. I used it with Bilstien 5100s with the stock spring set at 2.5" and with a 1.5" spacer and the shock set at 1.75". The second combo was difficult, but still doable without a spring compressor. Given that it netted ~3" of lift I think a 2" lift spring would be doable using this method.
Some important tips:
1. Remove the sway bar. This is super easy and you will save a ton of hassle later on.
2. Make sure you jack your vehicle up as high as possible so that you have plenty of room to push your lower control arm down with the pry bar.
3. Put a jack stand at the opposite corner of the vehicle. This will take some "flex" out of the vehicle and make it easier to pry down.
4. Have a buddy help you. A second set of hands makes this job super quick.
Hope that helps!
Edit: I did not even loosen the CAM bolts. Just undid the two lower ball joint bolts.