if i ever get round to building something (!), i'm probably going to start with a treble booster or something like that. far as i can tell, they have the simplest circuits (the rangemaster, anyway- something like one transistor and about 5 or 6 other resistors and caps). though the fuzz face doesn't have much more than that.
but yeah, i agree with your reasons, HTH, i'd be starting with pedals on the basis that they're non-lethal.
:)