Basic architecture texts by Macdonald, Thomas, Hunter, MacKenzie, Darwin and Weathered & Simpson had all been reprinted in the 1980s-early 1990s by the Classics of Golf Series (U.S.), Grant Books (U.K.) and/or the USGA and are available variously at less than felonious prices.
I'm now re-reading Macdonald's memoir for the Nth time and it is still fabulous and filled with insight, moral outrage and timely lessons for today's golf world.