Anyone one from here based in the UK and using 0.24mm? Having a hard time finding it!
And the mail has been and gone without my missing parts...Joy!

SCORE!
Postie came back having realised she had a package for me!!!!
0.24mm would be extremely tiny in terms of what we use, that would be ~31awg size, the bigger the number the smaller the wire.
22awg is 0.644mm, 24awg is 0.5mm, so anything in that range would be ideal, solid core if you must have 90 degree bends that hold their shape, the more forgiving, stranded with zip ties if a more fluid/organic set up is fine. PTFE/Teflon insulated is a bonus for either solid core or stranded.
And if going with the 90 degree bends get yourself a pair of conical tipped needle nose pliers, wide range of radii and not going to knick weaken the wire when you bend it. Bought mine at a craft store selling jewellery making supplies.

dave