Porting is supposed to be a relatively simple process. I'm waiting for some info on it myself. If I get it before you do I will forward the information along.

In the meantime I have found that O'Neill Brothers Racing sells Reed kits fr $99 and they're supposed to add HP to your engine as well. It's something to look into if the porting issue is too difficult. Here's a link to the Reed kit -> Reed Kit at O'Neill Brothers Racing. FYI...they're in the USA like you and me (Colorado).

Cheers!
John