Canada/Bell New Rom(s) Questions

[the92playboy]

I was wondering if it would make sense for me, as a Bell client in Alberta, Canada to flash my 6800 with the new rom, or if it would not work as it is a Sprint rom. As well, even if it would work, does the GPS work outside of the US? And thirdly, how much data transfer does the GPS use, as Bell does not offer unlimited data transfer and you max out at 1 gig/month for $100.Thanks for any advice.