Looking for suggestions on WY-325ES support

[L. Dee Holtsclaw]

We've got several Wyse 325ES color terminals here. There is an
NCurses-supplied terminfo but it has no color support included.

The real problem, however, is that there's no way to distinguish between
the left-arrow key and backspace or the down-arrow and a line-feed. I
presume the person(s) who designed the native emulation were either
total morons or didn't have enough coffee that day.

Anyway, my choices seem to be:
(1) Reprogram the left-arrow and down-arrow keys on every terminal
(which apparently cannot be done remotely).
or
(2) Setup the terminal to use VT220 emulation and bastardize a terminfo
defn to include color support. This requires a Programmer's Reference
for the terminal but it's still in production and I should have one
ordered within a day or two.

So, has anyone done anything like this or have any related suggestions?

TIA
Dee