The T1 works awesome on my Benelli M4, but even the H1 is pretty high up on the cost.
A decent set of ghost rings would go a long way though, I love the LPA ghost ring sights on my Benelli too.
I used to have a Docter Optics MRD, and it was an awesome sight too! stood up to the recoil like a champ, I just sold it to get the T1.