Oil Catch Can - Just buy one?

Seems like alot of jeeps have the blow by problem and need an oil catch can. I've been looking at all the articles on building your own and then thought I wonder what's on ePrey? I found tons. I saw these all day long for $20. Anyone ever use one or think they'd work just as good as a DIY. I only ask because things I've read said to have the input and output at a 45 degree angle from each other. At $20, that's cheaper than I can build one.

http://cgi.ebay.com/ebaymotors/ws/e...&_trkparms=algo=LVI&its=I&otn=2&category=6778

http://cgi.ebay.com/ebaymotors/Red-...907Q2em263QQcategoryZ46095QQitemZ250612720562

Why not just fix the blowby by replacing the CCV valves and hoses?

I've done that and still have blowby. At 180k, it's probably really bad rings and such. Can't afford a rebuild or the downtime on my DD.

not a bad idea, especially for that price. i always hated seeing my nice soaked filter and gummed up TB. you just put that inline between the engine and AF im assuming?

ive got a mishimoto catch can inline with the airfilter.
it wasnt $20, but looks better than a $20 catch can =)
air filter has been clean ever sinse.

The valve cover mod to help with blowby is http://www.naxja.org/forum/showthread.php?t=1026666

You could also try using Restore to better control the blowby http://www.restoreusa.com/