Finding the right size gullet?

 
Finding the right size gullet?
I was wondering if anyone knows of an online western saddle company that has, by any chance, saddles with a 6 inch gullet. I keep finding old antique saddles with the gullet I need.

I have an Arabian with rather high withers and narrow shoulders, so I am looking for a small gullet and rather steep bar angles.

I understand that I may have to go custom. But, its better to have just one saddle that fits perfectly, than to have 6 saddles that dont (yes 6, 2 westerns and 4 english).

Thanks in advance.
Have you ever checked your local feed store? Some feed stores you can get a saddle costom made. Also most western fire arm stores sell sattles and also costom make them. Your local gunsmith can make them and also adjust yours.