NID is always the same for US. SID can be found here based on your carrier and area..
http://ppckitchen.org/sid.html
MDN and MSID is your 10-digit phone #.
MIN1 = 7 digit phone
MIN2 = area code
Also a few other settings you may need to change before you can get on to verizon.
I'm actually doing the opposite tomorrow.. I'm gonna be switching my xv6800 over to sprint.
I'm taking a few screenshots of the important parts of EPST you'll probably want to look at. I'll have them up in a bit and update this post.
Another thing to consider is you probably won't have a verizon AKey coming from sprint so after all this is set up and the ESN is changed you may need to call them for an AKey.
Edit:
http://ppckitchen.org/misc/VZW_EPST.zip <-Screenshots.