Oh, sure (and aww!). The easiest option is Staples or Office Depot; the half-letter version is set up for printing through a service on letter sized paper and I've had report from folks that both companies worked fine. Home printing is a little more complicated, as you have to rearrange the pages. I'm working on getting a proof from drivethru, too, if that helps, though no real eta there yet.
Oo, that's tricky. Apologies if this is too basic advice, but what I'll usually do is use a program like Quantum Elephant's bookbinder on the half-letter pdf to handle the imposition. I know pdf readers will usually have a way of arranging pages as a "booklet" in the printing settings, along with duplexing, but I've never tried it!
Update! Acrobat reader had zero problems printing this to booklet. I folded and bound it at home. Its going to a friend of mine who has just gotten into DM'ing 5e and is now really into homebrewing his own things.
WoDu 1979 is one of my favorite rules light systems ever and this is one of the best presentations. Thanks!