Aren’t they pretty much the same height ? Just get an EGW hd version for a few $$ more than the regular canted base . They both serve their purpose just fine .
I bought a couple of Tennalum bases for SA & LA M700s from Brownells a couple of years ago, seemed to me that they're both a bit thinner at the rear than your typical 20 MOA scope rails. Not that I've done any actual measuring, just based on my visual comparisons.