That’s okay, it does look like trash. 
I’m just confused as to why in Max, each piece in the group has a second UV set added, where they’ve been automatically arranged in the grid, but if I select all pieces in the group at once, add a UVW Unwrap modifier, and set to channel 2, it shows just one set in the grid, but everything else is tiling upwards to the top, like in post 7.
But I’ll give that a go and see what happens.