Be prepare to mortgage the farm. The horn can be changed, maybe. Here's a bit of what you'd be looking at for labor. The seat leather has to be released at the front, as do the skirts. All the staples around the base of the forks have to be removed. If the forks are low slope that's a bonus. If not then either the welt is opened but to expedite things the leather is split from the horn to the hand hold. The horn is removed, however that is managed and a new one put in. Often auto body putty rebuilds the area that was damaged. The new horn needs to be either wrapped with leather or braided with rawhide. Not every saddlemaker is skilled at braiding a horn. Once that's all in place the fork leather will be put on and if split will be laced on. This is usually done so nicely it actually enhances the saddle. The leather is then nailed or restapled to hold it, skirts reattached, seat set down (two screws) and Voila. Expect to pay mechanic rates as a saddlemaker is a mechanic and has a shop and expensive tools to maintain.