Delta 50-860 Air cleaner or DIY Build?

[Dave Schreib]

Over the summer I purchased a used furnace fan with the intent of building an air cleaner. Have not done it yet, but getting close. In the meantime I have the opportunity to buy an unused, second hand Delta 50-860 for $200.
I am wondering whether it makes more sense to buy the Delta rather than build my own. The filters alone on the Delta are worth $80(?).
What would you do? Does $200 for the Delta seem like a fair price?

[glenn bradley]

The 50-860 was not one of the better rated in bake-offs during its time and the price is not a "steal" necessarily. It is about the price of the Grizzly new and about 60% of other competitors. JDS routinely won the tests in the past with Jet only recently usurping them.

[Doug Garson]

Before you buy the Delta consider the cost of replacement filters for it compared to standard furnace filters that most shop built units are based on.