Chris
Existing strings were 30, 45, 65, 80, 100, 130. They felt pretty rough, I agree (d'Ad Pro Steels). Just an experiment, they sounded great for a couple of hours then... The standard Elixir set has a 32 C & 105 E but otherwise the same weights. It'll sound and feel an awful lot better when refreshed with Elixirs.
An MK would be lovely but if you possibly can, get a Series bass one day, it's the full deck...
Ben