I've lived in Dover for almost 15 years and sell real estate out of Wellesley, Pinnacle Residential Properties, so I do understand the travel routes, times and problems. Good luck.
Between Dover and Weston (Rtes 20/128) it will take you less than a half hour, maybe 25 mins. Unless, of course, it is peak traffic time! Then it could be 40 mins.
Are you currently working with an agent to buy a home? Do you have to sell to buy?
Happy to help in any way I can! Feel free to call or email with questions (as buyer's agent, by the way, ther is no fee to you!)
Century 21 Commonwealth
555 High St, Westwood , MA 02090
Cell (508) 333-6592