If your looking to get a Vspec, get a Ninja JX21. this is The exact parts it uses:
OS Speed Vspec crank with no slug
OS Speed Vspec Rod
OS 28XZ Case
OS Speed Sleeve with5 ports.
OS Carb
The Speeds never had any of the issues the regular ones with the crank pins wearing down. So buy a JX and get Vspec performance with a little more.
So get one for the same price as a vspec, is more reliable and will last alot longer. All youll ever haft to do is break it in and replace the bearings with TKOs and put a new rod in it if you really want to.