1) the schematic is legible, you just need an extra Zoom step.

First click on the image for a larger preview, then click on the expansion arrows which appear bottom left.
Or open the image in another window.
2) it's a "discrete" function generator designed around generic ICs, not dedicated ones such as you mention.
3) the Op amps should be no trouble, they are DIP8 or DIP14, available on Express PCB
Don't remember the pinout of LM394, but just check the Datasheet
4) I sometimes use or recommend Express PCB because it's quite straightforward.
It's meant to be sent to them for fabrication (reasonable prices anyway) but for prototyping, you can export the PCB traces as a .bmp which can be laser printed for thermal transfer or Photo Sensitive PCB (killer definition, looks real Pro)
For posting on Forums, first convert bulky .BMP into monochrome .gif or .png .
Avoid .jpg like the plague it is.
5) as suggested by Dale above, *if* you have a part which is not in the library (not the case here), you can draw it yourself and add it.