XR650R and XR650Ls are totally different bikes......Both are excellent but they are nothing like each other.
As far as making a 650R street legal....Just do a search on this forum and you'll find all the answers to your questions...Or make it easier by going to www.bajadesigns.com and you see how it's done...

steve
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Steve Smith
XR650Rocketman
www.RiderDown.org in memory of MiniRocketman
68 Honda SS125A
00 Honda XR650R D/S
04 honda XR650R D/S
00 Honda XR250R D/S
02 Honda CRF450
02 KTM 200EXC
82 Super Sport Wife.