Gene Heskett composed on 2019-04-03 08:48 (UTC-0400):
I think the installers only other choice is xfce
You think wrong. Neither Gnome nor XFCE ever gets installed on any Debian here. Whether Debian or any Debian derivative on which I want TDE, I include the following on the installation kernel's cmdline:
tasks=standard base-installer/install-recommends=false
This produces a minimal installation, from which I add TDE to sources.list, so that the only desktop becomes TDE after following the TDE Wiki instructions.
Typically before I add TDE I install the very light weight IceWM, to ensure I have a working X, and something to fall back to, if TDE or its repos seem to be broken.