Kawie,
I have an 18.5" 45/70 and I have shot both the Hornday LEs and the Remington 405s Express Loads out of this gun, both with and without a slip on recoil pad. My gun has the straight stock and no factory pad. The recoil, to me, is far less than my Beretta 303 12 ga, shooting Remington Buckhammers or for than matter Remington Sluggers. To me, and my shoulder, the Remingtons 405s are milder than the Hornady 325s. If you fill the stock bolt channel with lead shot this will cheaply calm the gun down a bit, but tends to make a "shorty" a little butt heavy. If you reload you can cook up some loads that are milder than the factory offerings.
Good luck and I would go for the Talo 45/70, it is a nice looking gun.
BB