All in all, after doing this job, I'd have to say, its pretty easy. As long as nothing goes wrong.
I did the drivers side first, which is obviously more difficult. It wasn't bad though. Everything was easy to remove to make room. The cam came out and went back in easily, all the bolts went right back in too. All the coils looked new. I put in new spark plugs. The old ones were motorcraft with no evidence of oil or water in the plug wells, but evidence someone had done VCGs already. Putting the new VCGs in was tedious but easy. Torquing the cam was easy enough, the VCs are half torqued. I had to use a small ratchet so I just guessed. I recalibrated my hands every time I went back to the torque wrench so hopefully they aren't too far off.
The passenger side is where everything went sideways. Everything actually went great until it came time to reinstall the cam. Someone had monkeyed around with this side before. It had a good plastic tensioner in it. It had a broken bolt in the rear center of the VCG and the front cam cap upper bolt broke on the way back in.
After alot of cursing, totally removing the cam, a trip to town for the Easy-Out and a little bit of relocating items for getting a straight shot with the drill, I had them out. All the bolts had resistance when putting them in by hand whereas the drivers side ran all the way down easily so I chased every hole with a tap, it's M6x1 threads FYI. Stuck the cam back in and maaged to get it on the right tooth on the first shot. I replaced the front bolt with one that came from the old tensioner. I decided that the threads may have been stretched by a previous mechanic and that might be why they weren't exactly right, so I reinstalled the bolts with blue loctite. I hope that doesn't come back to bite me.
If you're using the cam tool none of this will be of issue to you.
Also, if you remove the cam, you'll probably want to snug up the middle cap and the one just to the rear of it first because those cam lobes are down and will be holding the cam up, I was afraid of getting the cam in a bind if I didn't snug them first and I mean snug, not torque
Don't be afraid to tackle this job, it's really not bad.
Good Luck,
Jared