I've been spending a lot of time down there recently and I'm seeing/feeling a shift.
Looks like new 4x2s are doing insanely well, all other stock is older 4x1, 3x1 or newer 3x2.
Definitely a good area for CG manufacture if you use the right product.
Westminster isn't the 'low end' anymore - might be why you're struggling?
Thought about Camillo / Kelmscott?
What about Coolbellup?
Does it have to be Perth? Some great regional opportunities out there.