I'd plan on tracking West of Bournemouth through D031 and DCT Ortac that should take you parallel to R41 and I normally fly that route at FL050. It's not worth going much higher as Jersey Zone normally clear you in near ORTAC at 3000ft. I use either Bournemouth Radar or Plymouth military to find out if danger areas are hot (rarely are especially at weekends) if they are and Plymouth MIL can't provide DACS then plan B is via BIA and then below R41 at 3000ft.
I usually call Jersey about 20 miles from Ortac and they will routinely clear you into the zone SVFR and then tell you where to fly and how high
