The capacitor types are very important. You're using 3x 3kv caps in parallel with 3xceramics, this will not work out for the best, and will take up a huge amount of board space. DSE sells a 330n as R3031, and if they're out of that you can use an R3027 in parallel with an R3028. Stick to the MKTs where possible - monos would be better, but hard to get any decent range of values. Use the R3027 in parallel with the R3012 for the 160n. R3019 in parallel with R3012 for 43n. Otherwise looks okay, assuming those resistors are all 1/2W 1% tolerance.