Cheers guys.
Pat; At the rate I work at expect a bit of a wait! I have a rake of unfinished projects around the place. I really need to sort that out. The Alco is almost there though
Rich; As you said, since they usually run in lash-ups there doesnt seem to be a point in having cabs at both ends. Railroads like Southern and Norfolk & Western also specified their diesels to run 'long hood forward' namely to run with the cab at the back as it was like driving a steam locomotive. Norfolk Southern inherited their locos in their merger and still run this way from time to to with their older locos although it's getting rarer.
I was the same as you about American locos, but when I looked closer at the EMD units I saw just how similar they are to our locos. Cabs aside it's uncanny. And then when you look at stuff like these SD45s running in consist attacking a climb it's seriously impressive. After all, 071s have 12 cylinder versions of the 645 engine, the SD45s have 20 cylinder versions of the same engine. Amazing locos.