Are invasions still going somewhat strong on your shard?
It's almost just as easy to go and get one or five yourself.
I just did part of a Trinny invasion a few days ago. First General healer/mage I found gave me a 3 MR, 30SDI, 10 LRC book.
If you have a dexer or tamer or even a bard you could get this done. I think 5mil a book is kinda ridiculous while they're still available.