Nothing wrong with a low budget plan! And in your case, getting rid of any potential soot in the intake or boost leak back through the EGR valve is a very good thing.
Once you have the plugs in place, you can also remove, plug, and get rid of all the EGR associated cooling hoses which are potential coolant leaks and will get rid of even more clutter around the engine area....
With the right tune, you could also totally remove the EGR valve and cooler! (to clear DTC's set when you unplug the EGR valve)
I would also remove the flapper butterfly out of the FCV if you have not already done so. Only two small torx screws and it can be pulled out...

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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited 
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