NH Route 93 South Through Boston

I would like to drive my 33' motorhome (and towed vehicle) south on Rte 93 (from NH) through Boston to Rte 3 south (Hingham/Hanover area) Sunday morning between 11:00 am - 1:00 pm.

I haven't driven it in a long time and wonder if I will encounter any problems with overpasses, tunnels, traffic, etc, on the Southeast Expressway (if they still it that anymore).

Thanks