I have flown a lot of trips in Europe, from Norway to North Africa and from Ireland to Czech Rep, Mostly for business but quite a bit with my family (parents and sisters when young, wife and children later, step-grandchildren now). The most important piece of safety equipment is the pilot who knows when to press the NO-GO button.
In all those years I have seen accidents happen all around me. One was a SET helicopter with the whole family and fiancé flying into HT wires after a Christmas family reunion. Another was a SET with father, daughter and grandchildren in a badly loaded P210.
BRS would not have saved any of those, nor would a second engine, but a well trained, disciplined pilot would.
I would seriously look at a Beech A36 that can be equipped with TKS and Turbonormalizer as the pilot experience and needs grow. My friend did just that, getting his IR on the A36, 4 years later he added a TN and oxygen, and later TKS. It is hard to find a better combination of comfort, speed, capability in a SEP. I have flown EBKT to EDSZ to LSZA and back to EBKT in a single day with extensive lunch at LSZA.