I use mostly rack rentals when doing labs but INE has a bootcamp right now so they are fully booked for 2 weeks ahead. I decied to run some Vol3 labs on Dynamips and it turned out to work fine. There might be some layer 2 stuff you can’t do but other than that most stuff seems to work. I used the same script as I use to convert Vol1 configs and it also works for Vol3. So if you want to run Vol3 labs I just wanted you to know that it is possible to do so and you don’t need anything more than my Vol1 script to do it.
INE Vol3 on Dynamips