I am getting some bids for replacement of split systems for several rental properties I manage . One contractor who mostly install apts and condo's 20-200 units per job . He said said had a number of the above units in his warehouse that he said were overstock units all made by Nordyne and he would give me a good deal on sytems used . He now uses mostly Goodman and Bryant on his big jobs. My question is whether it worth fooling with these Nordyne units ? ( availbility of parts etc) -thanks