Yeah, effectively the US 1944-45 infantry division is the one you posted +1xARM + 1xTD/AT + 1xAA(mot) on average. There's sometimes a few weeks from Normandy to V-E day where they don't have an AA bn attached, but good heavens, I can't be bothered. And while there weren't quite enough tank and TD battalions to go around, again, I'm not gonna micromanage that much. If there was a built-in corps troops thing where I could attach a few divisions and stuff the corps full of armor, arty, recon, and engineers, then sure, but not manually. From a certain point of view, the US armored division might be better represented as 3xARM, 1xLARM, though. Between the three tank battalions, there were 9 medium companies and 3 lights.
Although I'm going to give the post-war organization that died in funding cuts a whirl too. That'd be adding 1xAA, 3xARM, 2xHART, and 1xART to the infantry, and 1xAA, 3xMECH + 1xHART to the armor, roughly speaking.
