My last batches from.mouser were the best I've ever had, 75% within a +/- 10hfe measure and the 337 were only +5 from the 327 so a huge overlap, there usually about +30 the typical 327 values.
Check a few pages back on the diyaudio paradise PCB thread started by algaremi, I list the mouser parts numbers in a post.
They were so good I bought 2000.
While you at it you might want to replace C103, C203 100uF capacitors if ones you have used are rated 16V , 20V minimum rating is needed in this position
Si, I was thinking 5 X 6n8F and a 1nf plus a 10nf to complete the 33n3F and 11nF. RS have the little plastic block ones...Stylus lady for styrene caps, 10n and 16n
All signed, sealed and soaked, this one is ready for the trip to South Wales.
Simon
What make and Voltage are the 4700uf& 6800uf you have on the boards, a couple of my original boards look like they are bulging so I think I will replace the full set