I'll recommend two books. I don't imagine they're available in electronic format, but they are available as cheap paperbacks.
First: The Neophyte Shipmodeler's Jackstay, by George Campbell (published by Model Shipways). It's a skinny little book, aimed primarily at solid-hull wood kits. And it shows it's age, having been written in the early sixties. But it contains all sorts of good, basic information about sailing ships, including their rigging. Learn everything in that little book and you'll be well on your way.
Second: The Rigging of Ships in the Days of the Spritsail Topmast, by R.C. Anderson (Published by Dover Books). This one is even older (late twenties), but it's the standard reference on the period of the two ships you mentioned.
I don't know about British prices, but in the U.S. you can pick up both for a total of less than twenty dollars.
Good luck. It's a fascinating subject.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.