No problem
The extraction process is fairly simple, if you look around you can easily find good pictorial guides, and I'm sure if you have access to extracted dmt, then perhaps that person could give you a hand. Recrystallization is relatively straightforward, same basic idea of doing a freeze precipitation, although if you plan on doing the FASA method I wouldn't bother cuz it purifies the DMT in the process.
I had, until recently been much more comfortable with IM versus IV simply because you can't really screw it up, whereas with IV you can miss the shot, which sucks. haha but I've gotten over it and perfected my IV technique..With DMT I would suggest having a sitter present so that you can hand them the rig because I have found that the rush comes on very quickly, and having to worry about whether or not there's a needle laying around on the floor can be a bit disconcerting