You just need to be able to weld. The good part is you don't have to remove the barrel and then install it again.(I believe)

There is a build party in Severence coming up and someone there will most definetly be able to help you. There should be a lot of experienced builders there.

I will be attending hopefully and its 15 mins from my house.

Check out this site.
http://www.prexis.com/sten/homebuild...php?board=24.0

If you want to hitch a ride with me to the party that would be no problem also