Anyone know where I can get these seperate from the complete rear kit?

Cheers

You could try Phil at Performance5, his email is phil@performance5.co.uk

He has sorted me out with singular poly bumpstops and other small items, if he can help he will.

Try ebay i dont now if there the same ones you need

Find a kit company calld Cyana - they have the rights to an MX5 based Phoenix.

They also have a tie-in (or own) an MX5 donor supply company.

http://www.boundville.co.uk/bush-poly-mx-5-rear-upper-wishbone-665-p.asp

cheers guys