But how to fill the seats in the upper house? As I said, there is a freedome in not being elected that fits well with the concept. Filling it with Lords and Ladies is, as you point out, antiquated but I'd not want them falling under the pressure of making decisions in order to be re-elected or the pressure that party fellows or big business could exert should it become a new career like it is in the USA. Our main legislature is elected and, therefore, answerable to the Country, I want my "safety net" to be truly independant.
Perhaps a random selection of the population, sitting for a fixed period, some kind of draft system, with a guarantee of fixed working hours, leave of abscence from current employment and a competance exam to ensure quality. And of course, no one should be forced into the job.