I have all the pen making stuff,did try before I bought the kit a few years ago ,its ok doing dip pens,but the biro/fountain pens are more awkward without the spacers to gauge the thickness of the finished article,speaking from firsthand experience,only made 5 twist pens,so far and probably a dozen dip pens(in wood except the latest one),I buy my box hinges in model shops,they come with the fixing pins also the closing clips/fasteners,been awhile since I bought some though,normaly buy 40-50 packs in one hit and ask for a discount for cash haha,cheers,
Eric.