Acquisition: Newton Keyboard

As you may or may not know, the 2100 came with no built-in serial port. Thus, I have to either have an adapter or an internal add-on for it, in order to use the keyboard. Both these options cost nearly the price I paid to get my hands on the Newton itself.
So, you see my predicament. I could possible construct my own adapter for it, but I fear it may be a little difficult.
I'm going to have to come up with something. I really would like to use a keyboard to input info onto the Newton.
Hmmmmmmmmmmm...

i have thoughts on your recent newton keyboard aquisition.