XPS Handplane

I have a aquired some xps foam in excess. I want to make a handplane with it. I’ve read previous 
threads about xps and epoxy delaminating over time especially in higher temps. I was wondering if 
I painted the foam with a latex paint before laminating if this would stop the xps from reacting with the 
epoxy and heat making it delaminate? Also, with foam handplanes, leash plugs are the only way to 
attach a grip/handle. Would a vented leashplug decrease the chances of delam in xps as it does 
with eps? Also, if I were to cover the foam in latex paint, could I use poly resin when laminating?

Here are some photos of the xps handplane that I have shaped:

Top Side

Bottom side

Bottom side

Top side