Percussion Source has 2.6 paduk bar Korogi Desktop xylophones for $315 each. No stand included. I have 3 of them at our JH and have had them for 10 years each. I love them, and if you take care of them they last.
We purchased a set from Fugate Drums about 5 years ago to outfit our entire percussion section (6-8 grade). This has allowed for every student to have a practice xylophone at home. They have held up very well.
I ordered a set (10) for my students about 3 or 4 years ago and have had no problems with them. We have them on our beginner list and check them out to the families that cannot afford them. No parent wants to hear a bell kit in their home every day!
Just get the Pearl or Ludwig beginner kits. We were think about doing that for this year and got a bid price for 10 at $500 a piece. But, I know there are lower cost options that are less portable. We wanted something they could pack up every day. WWBW has some cheaper options from $350-480.