The VH45DE in United States market limits you to 95 and earlier. You don't want a '96. Likewise, the first three years had the timing chain guide issue (which is easy to swap out) but had stronger rods, IIRC. There are differences in the inlet ports of the heads, but that's mostly just a slight variation in how you fab up a manifold to fit.
I won't comment on VH41's since I didn't follow them as much, but I personally don't see any of the VH41's "superior design features" actually causing a problem on a VH45DE.
However, nicoclub and vh45de.com are great places to start.