[Closed] Inbred SS hub freewheel removal - help!

I have a Pompino, which came with the standard Inbred flip/flop hub.

I put a 16t freewheel on the screw-on side. Oodles of copperslip etc, so it hasn't seized.

I now want to change the freewheel to a 20t.

Unfortunately, because of what appears to be the design of the hub, I can't get the 16t off.

This is the freewheel on the hub:

http://jakestacey.fotopic.net/p57784975.html

This is a rather shakey pic of the Park FR-6 tool, attempting to remove the freewheel. It can't actually reach the splines, because of the cones.

http://jakestacey.fotopic.net/p57784976.html

So, you think - remove the cones.

But you can't do that, because there isn't enough clearance to get the cone spanner in around the freewheel:

http://jakestacey.fotopic.net/p57784977.html

What do I do? It feels very much like a Catch-22 situation.

I have tried various spanners and mole grips, but they haven't worked either.

I don't particular want to destroy the freewheel, but will if I have to. I can't see any way of getting the outer cover off though - because of those blasted cones!

Any ideas?