I don't know if clip-ons would be the way to go, but I think it might be beter with lower risers, or with just MX bars.
A set of longer rear shocks would be a big help for sure, and I think I'd trim the front fender a little.
It looks great though, I really like the new seat you put on it. Is that something you custom made?
You've got a nice project on the go, and I'm with you, I'm surprised more people aren't doing stuff like that.