Hello again -
I spoke to an audio engineer friend of mine and had him look at the schematic as regards suggestions of the type of capacitors for each section of the circuit. Here are his suggestions (these are by no means required) if you are self-sourcing your kit to ensure the best (read: most precise) out of the circuit. I'd love to hear what everyone else thinks (especially you, casper!) about this!

C5,C6,C25,c34,c42,c38 Panasonic audio electrolytic 

C24,C26,c31,c30,c32,c33 Wima audio film capacitors

C8,c9,c10,c11 (Timing), Wima film capacitors

All others can be ceramic.

Any thoughts?