Saurav, will you be measuring the MMGs (/+ dipole woofers)? I understand what Davey is saying but even in-room measurements are better than nothing. As I recall you have a pair of the same drivers I have.
Eventually. I have a 1 month old baby, so my life is pretty insane right now

That will eventually settle down, and if I'm lucky, I might be able to put some time into this project this summer.
I have the AE OB12s, although I have to say, with an 80Hz subwoofer XO, I'm not really hearing a need for a woofer. But then again, when has 'need' got in the way of a DIY project, right

I have a lot of brushing up to do, don't remember any of the math for building H-frame enclosures.