#1
which online shop in europe would sell guitar parts (tremolos, tuners etc.) for the cheapest? and what do you think which hardware (gotoh, shaller) offers the best compromise betwen quality and price?
#4
if your in the US and use ebay. Check out Naational Music Supply. If your not in the US maybe just check them out anyway. Its just that the postage prices are really high.
Also if you do use ebay i would strongly recomend Music city mania. Very cheap prices and very cheap postage costs!