Thank you all for the help / advice.

I have gone for a more straightforward setup consisting of

Shimano 105 5700 10sp Shifters
Shimano FC-R460 chainset (46.34t)
Shimano 105 FD
Shimano XT M771 10sp MTB cassette (11-36t)
Shimano RD-M592 Deore 9sp RD

Gives me 25 - 112"

I'll see how it goes and re evaluate if necessary.

If anybody sees any reason why this would not match together (sufficiently) please let me know where i've gone wrong!

Thanks,
Dan