I've got...well, probably a couple of hundred from various sources, and hundreds more in books. I think ship plans are wondrous things; I've never seen one that didn't teach me something interesting.
One suggestion for anybody just starting out: if you've got a blueprint (a genuine blueprint, with blue lines on white paper), keep it rolled up in a drawer. That reproduction process wasn't designed to last. The blue ink fades pretty rapidly in any sort of light.
Another approach: take the blueprint to an architectural graphics store and have the people there make a photocopy of it. Places like that have huge xerox machines that can reproduce such documents accurately - and the cost is quite reasonable.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.