The Tyler Seguin trade is the closest possible comparable to a Hall trade (considering their ages, career stats, draft pedigree, etc.). Seguin, along with Peverly and Ryan Button were traded for Loui Eriksson, The Good Smith, Matt Fraser, and Joe Morrow.
So Boston got a 20+ goal (70 pt.) winger, an up and coming roster player, a bottom sixer, and a pretty good prospect for a Seguin, a journeyman defenseman, and a third rate prospect.
As such, I'd say if you wanted Hall you'd be looking at giving up Nyquist, Jurco/Sheahan, plus a middling prospect. They wouldn't need Pulkkinen too, and they wouldn't need a pick.
If that's the asking price I say "no thanks". Hall is a REALLY good winger, but I wouldn't want to lose the center depth (Sheahan) since we're thin on the ground. I'd do that package for Seguin, but not Hall.