While I cannot speak for Bob, I can tell you that he has always been generous about being willing to travel with people to Russia who are interested in the Palace. I helped to organize one such trip in the 1990's.
Exeter is willing to package trips for us. It is not, however, as easy as it may look to do this. For starters, we generally need a minimum of 20 people, but the group can't get too big, or there can be problems. The rub is the money - with the airfare cost, it doesn't make sense to have the trip be too short, but needing to stay longer means that the lowest cost I could ever come up with was $5000 per person. That's alot of money, as most people would want to bring someone with them.
I am willing to help organize a trip, but before I do, I'd like to have plenty of input on what people want beforehand.