"All Hollow Though You Be" is included in "Slippery and Other Stories", which is a booklet published by Chris Drumm in 1985.
"Bird-Master" is included in "Four Stories", which is also a booklet published by Chris Drumm in 1983.
Chris Drumm's site is:
http://members.aol.com/cdrummbks/
If these items are in stock, you may order by e-mail.
"Smoe and the Implicit Clay" is included in "Future Power", which is an anthology book edited by J. Dann & G. R. Dozois in 1976.
"Great Tom Fool" is included in "Speculations", which is an anthology book edited by Isaac Asimov & Alice Laurance in 1982.
Because these books are out of print, you might be able to find copies by searching Bookfinder com., or other online used book shops.
Here is a complete list of Lafferty's short stories.
http://rad.clin.med.tokushima-u.ac.jp/R ... /E/ss.html