Spud has the H4 conversion figured out, so hopefully he'll chime in on the headlight.
Perhaps you'll find a China rack on eBay, or maybe a forum member here has one for sale.
I have two ideas for fork protection. It's a little hard to tell, but it looks like you have the mounting bosses on the bottom of the fork legs for plastic fork protectors. If that's the case, you'll likely find something at either
www.bikebandit.com or
www.rockymountainatvmc.com.
Another option is the soft Acerbis fork protectors, which simply attach with zip ties.
Where in Alberta are you?