Why not bump the original thread, saying youve PMed him and had no reply, and did he get the money OK,,,. That way the other folk waiting for their book or maybe received there book will be awares,. Then ask the MODS to bin this thread,,,, for now.
Hope it all works out, had good trades with people on this site & others over the years, this site is a bigun and anyone can join & instantly start putting stuff up for sale, good idea? Hmmm