Jedburgh,

If you're still interested in, you can find the book you already converted in PDF here :
http://www.archive.org/details/histaccount00smitrich

It's available in PDF, DjVu and TXT formats, and the PDF file is 'only' 21 MB (and DjVu format, which is generally as readable as PDF one, is 3.5 MB).
I've already searched for the other books you're looking for, but haven't finished yet; I'll keep you updated if I find something new.

Best,

CB