the hard part about this process is getting hardware that will work resonably well with all 3 OS's. and getting windows2000.
You could always try to get Win2K instead of XP, I'm sure a dealer would be able to do that for ya.. Then again, the laptop could use hardware not supported by win2K leaving you with EG a 800*600 16 color screen or something weird like that (extreem example, but it could ;-) )...
Then again, maybe a dealer wants to help you, but maybe he can't because of licensing policies he or the manufactor has..