Rumor has it that MRU isn't worth the trouble except for A-class, but I haven't checked. There's that $300 fee, cases where they quoted incredibly high taxes, BA's fuel taxes in any case, availability issues, routing restrictions, and the time and cost of getting there and back. If you want, I'll PM you the contact, but I think there are better choices for D. Meanwhile, if you haven't already looked at the cost and schedule for getting there (and back, after your trip) I suggest you do that - I was all thrilled with the cheap A fare until I did that.