I might start with this one to test out on the Amigo before I copy over to the Vehicri:
http://www.pepboys.com/product/details/9291218/00031/
I'm starting to like Ldubs approach with an oil accumulation can more & more though. It looks like this might get messy if too much oil is present with the fumes.
Also keep in mind that this modification is slightly illegal. IIRC, it's been required since the 60's to NOT vent the crankcase to the atmosphere. Those gasses are required to be incinerated.
One thing I'll need to check when we pull the valve covers off of Boy's VX is for a baffle under the PCV. There's supposed to be one to prevent the oil from splashing into the PCV.
Mebbe dis one:
http://www.s2carbonworks.com/mfbialoilcac.html