I'm back to the HRV.
Looking more into the WHD seems they would work as well as a HRV for what I want (removing moisture) but see even the smallest Honeywell (
DR65) is 5.2amps and would need to run the furnace fan also. For that amount of draw and each unit costing similar might as well get the added benefit of fresh air being brought into the house with a HRV.
Though the installation would will be a little more involved since would be pulling from main floor, I was allowing a straight run up through a closet (return tying to existing FA ducting), I still can't understand the cost.
I hate crawling through the attic specially with the blown in insulation so might have kicked over a $1000 for a days work for 2 guys (sort of what I had expected), not $3000.