Did you ever redo your circuit boards to accept SMD oscillator chips now that the DIP packages went away?  If so, where are they being sold now? 

I did, and I came up with a way to make it easier to mount and hand solder the 5 by 7 mm leadless SMT packaged parts.   DigiKey sells and programs both Epson and Cardinal Components programmable oscillators in SMD  packages which have TTL compatible outputs,  enable pins, and 50ppm stability but the present tariff situation has impacted the cost of PC boards from China-based suppliers so it may be a while before the boards are available at an affordable cost.  My best suggestion for anyone wishing to hand-solder one is to stick with the 5x7mm package and mount it upside-down "dead bug" style with a bit of glue, then use fine wires to make connection from the solder pads to something like the pads on a DIP breakout board.

73, Bob W9RAN