I'm typing on a new model F77 as we speak. Built as a tank, easily serviceable, touch like it was 1981.
The lack of function keys can be alleviated by using the so-called tap-dance QMK extension, it allows for triggering the function keys using either:
- Holding down the key for longer than 250ms will produce a function key.
- Double tapping the key produces the function key right away.
As for the backtick/tilde and escape, there are other solutions for that, as in (not necessarily exclusive):
- Ctrl key tapped produces ESC.
- Shift Esc, gives a tilde (unchanged muscle memory).
- Ctrl Esc, gives a backtick.
Incidentally, I mapped Caps-Lock to Ctrl, of course.
As for the numerical keypad, the F77 gives you a 3 x 5 keypad to play with. It usually allows for most incantations of numpad use.
With regard to next year's model, that is NOT going to be buckling spring (model F). If you still want the buckling spring, you should order right now. The window for new orders is likely to close soon (end of june perhaps), after that the manufacturing will close down permanently.
Next year's model is going to be a beam-spring keyboard. And yes, an option then is a full model-M like layout. However, the price is going to be higher. The buckling springs are for less than $500, the beam-spring keyboards are likely to cost around $1000 next year.