2yrs ago I had the same issue, however, I'm also big on MPG (even an extra 1 or 2, it adds up). The Access Cab is as big and as loaded one can go with the four banger (manual only), yet 4x4 for hidden fishing spots, so the decision was made for me.
Since then, I testify to the interior space as being great, the back suicide doors opens sweet, and I like the fact that I can reach around the cabin from my seat.
The child will fit with room to spare, and in 5 more yrs he'll be up front any way.
Still make a list of what you want, I see tow load mentioned, child, and that single thing may change with the new whip and all. Hope this helps out.