If you are patient you can get one for a lot less, i usually lurk on ebay and do offers on the items if the seller accept them, and if not i send pm...
You can go for a laser 128, it's a clone but have all the optional features that you will like to have already build in also have a slot on the side...
Replace all tantalum caps on the isa card, when removing them check the caps for shorts.
I have been restore a couple of compaqs and an ibm portable...