I thought of doing a find and replace but was still thinking you'd have to do it for every possible elevation in the file but of course assuming 0.00 or whatever is as valid as just 0 then you'd only have to replace each digit.My old method for grabing imagery was to make a huge google map window in the browser as large as was needed and then use a browser plugin that captured the entire browser page including off screen area.
My method now is to use a program called SAS.Planet.
I've actually written something for my current methods but it isn't really finished and it's gotten so big it's more like a manual then a tutorial
A lot of it also involves Global Mapper which is a program you have to pay for so I suspect its not even that useful for most others and more useful just for me when I forget things.SAS.Planet is free though and I think you'd find it useful. I will attached the part of my manual about SAS.Planet. I think my directions are mostly coherent in that section but the whole thing is still a rough draft so not sure.
Well if you figure SAS.Planet out it might eliminate your need for it but I'll still have a 1600x1600 file for you before the end of the night.