On the topic of measuring wheels, we always use a straight line. Some people do in fact bend the tape measure to create an arc, but for us that's too much work. warhammer is a game of inches, but if you quibble about fractions then you lose the whole point, in my opinion. This is really just a way to get together and play with friends I wouldn't normally be able to probably play ever again after they moved across country. Playing tabletop there is always a certain amount of inconsistency and inaccuracy that you have to live with. This gets a bit exaggerated playing VTT, but it's something to live with. Slight mis-measurements on a wheel isn't going to break a game I don't think. What I have done with tokens is what Gauss suggested, resizing the grids of the base map for each token, and then saving that token to a unit card. Right now I have some orks and ogres done, and am working on skaven. These are the armies my friends play and we are most fmailiar with to test it out. LoS is tricky, but we have been playing since 1992. We can pretty much figure out a giant can see over a troll, who can see over a goblin. Others are a bit trickier, but again we aren't prone to arguing too much as a group any more. :) In experimenting i have found zooming out to between 40-60% to be ideal. Too much more and things are too small, and too close you lose the sense of scale. You kind of have to have the experience to have a feel for the game in general. I've forgotten enough units on the tabletop in front of me, I am sure that I will forget some VTT. I think using turn order for units will be a good idea, and checking them off as they move. I don't know that VTT will work for players unfamiliar with the game. I am using colored dots to indicate unit champions, etc. General troops get a circular or generic token (orc face for example), while characters are getting a more exact picture. It is super easy to just get an official model picture to use however. I am not sure on the copyright issues, if there are any.