Subharmonic SDR RX (TX?)

I still have not published any details about my subharmonic, yes, subharmonic, SDR receiver for 30m. Will come, I will tackle the diagram drawing later that day. So much is said, take a subharmonic local oscillator, split the signal in a I and a Q paths and delay (phase shift) the Q path by 45 degrees. Yes, it works, the 30m version really works, image canceling and everything.
30m is based on a 5.0688MHz canned oscillator.
Unfortunately, I could not find anything for 12m...

Here come the ideas for other bands:
Frequencies in MHz, the crystals for frequencies printed in italics are available at box73.de

80m

• DATA/Voice - 1.800
• Voice - 1.820, 1.856

40m

• DATA/Voice - 3.535
• Voice - 3.560, 3.579
  

20m

• CW-range - 7.015
  
• DATA - 7.030
• Voice - 7.058, 7.122

17m (overtone CB crystals => divide by three)

• best fit: 27.155, 27.165, 27.175, 27.185, 27.205

15m

• Voice/SAT - 10.700

10m:

• CW - 14.010
• DATA - 14.055, 14.058, 14.060
• Voice/SSTV - 14.200
• Voice - 14.250, 14.252, 14.270, 14.285, 14.300, 14.318, 14.333
• SAT - 14.7456

Some other options could be considered:

SW-BC

• 75m - 2.000
  
• 60m - 2.4576, 2.500
  
• 49m - 3.000, 3.072
• 31m - 4.9152
• 25m - 6.000
• 16m - 8.8672
• 11m - 12.750

Weather FAX

• DDH - 3.9321
• GYA - 4.000
• NMF - 2.97152

Weather TTY

• DDK9 - 5.0688

SW-Navtex

• 2.97152

It needs to be mentioned that the L.O. should put out a pure sine wave. The easiest way to achieve this is a crystal as a filter, as I did it in my 30m subharmonic direct conversion receiver. It seems tempting to use counters & co to reach more frequencies, but, the amount of filtering required would spoil the simple design...