assuming the front camber settings are the same either side (as in original specification), would the bolts be set in mirror positions on either side of the car?

On one side of the car, the 3 bolts that can be loosened to adjust the camber are all at the far side of adjustment, with no room for any camber adjustment. On the other side, all the bolts are nearly 0.5 inch different (not being symetrical) -I've attached a rough diagram to explain. Could this setup cause the car to pull to one side as I'm guessing it could (I've always had pulling problems with the car but it's got a alot worse since replacing a lot of components) ?

semi-Hypathetically(!), is it possible to (roughly) set the camber without high-tech equipment?

 

From the factory it may have been equal on both sides, but it may or may not be equal now with a good alignment. Most used cars' adjusters aren't equal from side to side--it just happens that our third-gens allow us to see where the adjustment is. As far as doing it yourself...I've done mine a few times and it was really close, but I've done many, many alignments. The pull can be caused by other things like bad tire/tires, low tire, caster, camber, brakes, road..... Adjusting the camber will change the toe setting--it will have to be adjusted to keep the tires straight down the road or you will get rapid tire wear. If you want it done right it needs to be hooked to some equipment. Don't use the stock specs (do some searches on alignment specs), and request the alignment to be perfect--not just within half a degree or something.