[GreenKeys] Which TTY machine?

[Paul]

Hello and thanks for reading,
For years i have used a computer and multi-mode communications
processor,
and most recently a sound card and software for RTTY.
I would like to put together a RTTY station that consists of an older
style TU and
a mechanical teleprinter.  As i know nothing about these machines,
perhaps someone
would not mind pointing me in the correct direction. Maybe a "later
model" more
compact teleprinter, and probably a "better quality" TU.  Thank you
again for
taking the time to read.

73 - Paul