Hi Rob... and welcome aboard! Don't forget to post and check the main tank forum. This forum, The War Room, doesn't get the hits the main forum does, and isn't really meant for general questions and discussions. I'm surprised that no one told you to look at the HL Tiger. They are great and have lots of mod possibilities because of the size, and they have been upgraded with the newer electronic boards along with the other newer models. I've got two, and one under major reconstruction converting it from an early Tiger model to a late war version. It's been a fun build, but coming along slowly as I haven't been able to put the time into it like I would want to. Here's a link to the main forum in case you haven't found it and a pic of some of the bits and pieces you can get to add on a Tiger.
Again, welcome and have a great time!
Ernie
http://www.rcuniverse.com/forum/forumid_369/tt.htm