You may find
this leaflet useful for planning. I tend to use the KATHY-GARMI 10,000 foot route when going VFR (but you need to change level to 10.5 or 9.5 when entering Brest FIR). With accurate nav, you could scoot down just outside R41 under L980 and go to ORIST and enter that way as the base of L980 is FL110.
The leaflet (link above) gives 01752 557550 as a contact number to check the danger area status before you depart which may save some hasty in flight rerouting.