It’s worth reading this first…
…being an equidistant centre party is good for winning votes and terrible at winning seats.
That’s three questions anyone wanting to set up a new centre party has to answer, just as a preliminary: What does your proposed party stand for? How are you going to build an actual party, not just an HQ? How are you going to win Parliamentary seats and not just accumulate wasted votes?
Once they’ve got the answers to those, then we can move on to the more important ones, like how are they going to actually work in the current British party system. But we’ll save the advanced questions until we’ve got answers to the basic ones.