New rotors and pads for 130 td5

[County4.4]

Can anybody recommend a brand and supplier for the above vehicle for the rear brakes?
Slotted or solid?
It is a 2003 defender with P38 diff.
Reading on ebay there appears to be two different size of rotors.
To save me going out in the dark and pulling a wheel off to measure, does the brains trust have an opinion on which size I need??
I use the car to put my boat in fairly reguarly off the beach so would solid discs be better ?
And yes it does get a liberal spray off penetrol and lanolin, but surface rust is hard to stop.
Opinions please.

[rick130]

I really liked the DBA slotted (not crossdrilled) rotors I fitted to the Tdi 130.
Sorry, can't help with the size of the rears.

Pads are another story.
I've used Ferodo and TRW.
Ferodo rears squeal like a banshee when dusty, and I drove dirt a lot. They were really annoying.
The TRW's did better and stop ok.
Being a Deefer the pedal needs a big shove.
I would've liked to have tried EBC Yellow Stuff.