Dear Ann
I have seen some Histology equipment come up for sale on the Ebay site under  
the search word Histology , you also might want to check yahoo for item sale. 
There usually not much but you can check back and forth, plus someone on the 
histonet might be able to sell you one. Maybe the companies like Shandon has 
a reconditioned one or display one for sale.
Hope this help
Sandi Miller HT
MRICD Research
Md