Tingin ko mas iitim ang usok. The purpose of the EGR is to reduce particulates sa exhaust by recirculating it through the intake manifold. So removing it effectively lets all the particulate get out via the exhaust.

If you're concerned about being a smoke belcher just have the intake manifold cleaned (exhaust na rin) and EGR tested for functionality. No difference in temp unless it's really clogged that it's actually suffocating the engine.

Looks like you have the cross flow manifold. Yes block off the right and left sides where there are two bolts that hold a diamond shaped flange on the right and the round flange on the left where the EGR goes into the intake. Vacuum hoses also need to be removed so plug these up din if you want to keep it clean.

Use a dedicated oil catch can instead of the cheap filters. This is also added maintenance - you might have to empty the catch can once in a while so check it more often after installation to see how fast the oil accumulates. Check your van's oil level just as frequently too. What amount of oil goes into the catch can is reduced from the oil sump. If you're also burning oil consider that in the equation so you know how much you lost or have to add. HTH