It's basically just a strut swap - installing a 2" lift is really simple. The only additional steps might be unbolting a sway bar to make room for the longer strut assembly (strut + lift block). So for installation purposes it's basically just exchanging a strut assembly (not just the strut, you don't have to do all that spring compressing, etc).
So you can basically look up a strut swap video for 00-09 outbacks and it's going to look exactly like that except without the lift block which is cake to install.
2" lifts are really easy and shouldn't cost much at all. you're just unbolting the strut, bolting the lift block to the top of the strut and then reinstalling it to the vehicle. Not a big deal at all.
Larger than 2" starts to get into a lot more work with lowering blocks.
Also - you can install them one or two (both front/both rear) at a time and the car is still drivable. It's not as if you'll be hosed if you can't get all 4 installed at once.
You could also find a junk or scrap top mount for a front and rear (someone on here probably has some lying around), if you want to order the lift and then just see how they mount before you (or friends) do the job.
Email scott and he'll get you a 2" lift:
Lift Kits
I'm pretty sure it's this one:
Lift Kits : 0 2" Lift Kit 2000