This.
You really need to know what kind of use this car will have before you make any decision.
In my corolla, I wanted to build the car for track, and run one of the biggest cams I could. I figured it couldn't be too bad to drive on the street with 304 duration cams, but was I wrong. I knew it would be mostly up top that I would make power, but it's literally nothing below 5 grand. Driving the damn thing on the street is literally a chore, but on the track it's a hoot once I rev the piss out of it. Granted, the cam I picked is on the extreme side of what you're looking at. But, when they say drivability is affected, I suggest taking it into consideration.
Honestly, I would make a conservative choice from there and then move up to something bigger later if you really feel you can handle it.