If you drive it in all kinds of weather you will definately be better of keeping a PCV. If it's strictly a nice weather driver, you can get away fine without one.
And a .99 cent wristband from your local sports store makes excellent breather "filters" that will keep any oil residue from making a mess. Just pop it around the breather. Replace it as needed, about every 1-2yrs. You can even color match to your engine. Of course I always use blue.
69 Mach 1 R-code - 427MR 4-spd
68 F-250 4wd - 390HP 4-spd
58 2dr Del Rio Wagon - 390 4-spd
65 Galaxie 500 2dr hrdtp - 390 (automatic
53 F-1 239ci flathead 3-spd
09 Mustang GT 4.6 5-spd