You wont have any problem with that. I have flown similar twice recently in an Arrow. I cant speak for what happens north of bpk because I join there but after it is pretty much as filed. What you should know is that coming back seems to get an early descent and handed out of the airways to thames or southend radar to traverse the detling lambourne part. So that is the part to research how you get handed onward.Last trip I had to descend 4000ft det to lam and thence 2400 to denham so below tma. And yes, dvr rinti is no problem. Hope that helps