I love my Harry Dabbs, it is super comfortable and I fit snug as a bug in it.
There is a tack store here that sells M.T's - www.classicsaddlery.com
She can help you.
I suggest you hire a Professional Saddle Maker/Fitter to come out and help you out with this process. A good one will come out with a truck/van full of saddles and their tools and will assess your horses back, try on saddles, watch you ride in them and go from there.
Most are around $75 - $100 depending on your area. What I may like and what may work for me, doesn't mean it will for you.
I also like the Collegiate Diploma Convertible. I've ridden in that saddle and it was very nice. I would of bought that if I didn't get the Harry Dabbs I currently have.
Good luck on your journey!