[neallewis]

I'm not there this weekend, sorry to say

do you mean this part: B4-200FB - Front Brace
https://www.rccarshop.co.uk/spares/y...-front-brace-p

or B4-300UM - Upper Suspension Arm Mount (Left & Right)
https://www.rccarshop.co.uk/spares/y...t-left-right-p

or B4-300FF - Front Suspension Mount FF (Front side)
https://www.rccarshop.co.uk/spares/y...f-front-side-p

I can't think of any other part you might mean?

Tried Tonisport or Mibo?
Also, try message Lee martin via facebook, and post on the Yokomo YZ2-YZ4 facebook group.

I sold all my bmax4iii kit, but there are plenty around, still.