Hello Kim!
Off to a great start! I'm a little surprised you didn't take the new Dragon kit - that might have saved you some work, like closing up those motorization holes. I have completed the Tamiya kit (well, the copy of it) like 15 years ago - you can see it here:
http://www.vietnam.net.pl/M48en.htm
Maybe it can help you any.
It's a great thing to have a photo reference like you do. I don't know, if you can discuss your build with the man who was there and done that, but if you do - it's even more help and makes the satisfaction from building something really accurate just extraordinary.
Good luck with your build and have a nice day
Paweł