clutch master and slave in australia

[dgym]

after my brakes pedal went a bit deep to the floor the other day I had a look under the cap to see some very old fluid, I think at least a bleed is in order...but, I also looked under the clutch master cap. and was shocked to see CHUNKS of rubber!
so I'm doing a pre emptive fix before going away for xmas. Last thing you want is your loved ones to be proved correct about your car being unreliable.
I took apart the master and slave and have decided both need replacing rather than rebuilding (deep gouges in the surfaces)
can any aussies tell me a good quick source for a master and slave?
and can anyone tell me the difference between this:

and this:

one is "for a lotus", the other "for a trailer" with quite a price difference. both say AM-03 and both are exactly the same as the one I removed.
Sometimes my cynicism protects me, sometimes it just wastes my time.

[robertverhey]

Personally I wouldn't have any qualms about using a trailer brake cylinder provided it was an exact match dimensionally (ie, reservoir size, piston diameter and 3/8 UNF thread with the right sort of drilling to accept the ?lan sort of flare).

However a quick, permanent solution which will outlive you and the car is a re sleeve in stainless. This will cost between $80 and $100 per cylinder, plus price of seal kit. Two places I've dealt with in Sydney are Burt Bros in villawood and master brake and clutch in Croydon.

[rgh0]

BGT in Dandenong can either provide replacements for most brake and clutch compents and can also re-sleeve your current cylinders. Talk to Derry there - he has looked after brake and clutch parts for my Lotus for many years and used to race a Cortina himself.

cheers
Rohan

[dgym]

turns out the bore size of a supercheap auto trailer master cylinder is too large.

I think i'll go the re-sleeve.