http://www.landsend.com/pp/StylePage-407275_BQ.html
http://www.amazon.com/Bass-Mens-Amsterdam-Ankle-Boot/dp/B003TFEVN0
both are close
not perfect matches.
absolutely they are good for 501st
The Bass ones are NOT good enough for EIB or centurion over on FISD due to the slightly squared off toe.
I don't know on the lands end