I would like to learn about character theory of finite groups of Lie type and some Deligne-Lusztig theory. The classic textbook on the subject seems to be Roger W. Carter's Finite Groups of Lie Type: Conjugacy Classes and Complex Characters (Wiley 1985, reprinted in 1993 in Wiley Classics). Sadly, this book is out of print, and while second-hand copies can be found, they sell at a ridiculously high price (e.g., this site has one for over 1200€). To make things more problematic, the same author wrote another (earlier) book with a confusingly similar title, Simple Groups of Lie Type (which I have), and which tends to come up whenever one searches for the Finite Groups book.
So, two questions:
Is there a (finite!) set of textbooks and/or introductory articles whose union covers the same material as Carter's Finite Groups of Lie Type? I have a copy of Digne & Michel's Representations of Finite Groups of Lie Type, but it seems (a) much harder to read, and (b) less complete (which makes sense as it is over three times shorter); are there other texts which might fill the gaps?
(This is not a mathematical question, but I hope it is nevertheless allowed here:) Is there any hope of persuading someone (whether the publisher or author, whoever holds the rights) to republish this book? The fact that it is still considered a standard reference, especially if question (1) does not have an answer, and the fact that used copies are so expensive, suggests that there is some demand. But I don't know if the author is still mathematically active, or if Wiley still has the rights.