Looking for items

Looking for a couple of items for an engraver I'm building. If you have it
in your junk box or know where I can find it for a reasonable price, email
me. Figured I'd ask here while I look on ebay

1) Aluminum T-Slot table material about 24" X 24" can't seem to find anyone
who sells this stuff. Does not need to be too heavy duty for engraving, so I
don't want a cast iron table off an old 40 ton mill. Anyone know of a
manufacturer of this?

2) Stepper or servo driven slide with THK type rails about 2" - 4" travel no
backlash. Even if you got one without the motor, I'm interested.

3) Two lead screws with anti backlash plastic nuts or ballscrews. at least
20" of travel, I can turn them if they are longer.

Thanks, Bill