I have a wood stocked, bull barrel in .223. It cost me $229. I have never shot a .204 but I have shot some coyotes with my .223 and it puts them down quick. As for the .204 on coyotes, I can't say personally but alot of folks on GBO swear by it so it must work!! You could also check out the varmint hunting forum, there is alot of discussion about both cartridges and their effectiveness on coyotes.
Spanky