I am using google earth and Bing maps with the Birds Eye on my I Pad. It appears that about 75% of the right of way is intact as ATV/snowmobile trails and there are some bridges out that I will either have to get my feet wet or portage around. Its hard the belive that 2 track mainline has been reduced to being unreconisible in some areas.
It may be harder than you think. I don't know about Depew to Rochester, but south of Phelps Junction the LV goes twenty feet over a gorge, with sheer cliff faces on both sides. You will be hard-pressed to clamber down and then back up again, given the likelihood of prickers, stickers, and poison ivy. Not to discourage you; just to allow you to steel your courage in advance!
BTW, the LV is a rail-trail from Wadsworth Junction some distance east; to Victor, I believe.