Hopefully the bottom rib assy and stiffener are not corroded.
You have a bit of a sheet metal project on your hands, but it doesn't look complicated at all. The rudder has to come off, then remove lower rib, drill off damaged bellcrank, treat all alum surfaces, primer, then install. Looks like all rivets can be done with access to both sides, blind fasteners not req'd. One day job, if nothing goes wrong/no surprises.
We did exactly what you described Brian. When we got the bottom rib off we discovered the forward spar (just an aluminum channel) was broken at the bottom rib. Here are some pics. The first one shows the spar horizontally on the right of the pic. The second one shows the angle doubler that is broken. I'm not sure if this can be fixed. I might be giving Kenny Faeth another call.
I hope he or someone might have a rudder for a straight tail 150.
![[Linked Image from visitedstatesmap.com]](https://www.visitedstatesmap.com/image/CAsm.jpg)
