To export several sets, go to the exporter. If you use the data I'd really appreciate a link back to Brick Insights. It keeps this site going.
Build a LEGO Mustang's high quality is perhaps unnecessary for what is purely an instruction manual; if anything it slightly hinders its ease-of-use. Whilst $20 is good value for a book of this quality, it's less good if the book is only used once (which an instruction manual is likely to be). We suspect the same result could have been achieved with thin paper, less gloss, and for a fraction of the cost. Which is exactly what LEGO do.