In need of HVAC guy to install a used furnace

[Grant Charles Farchmin]

Hi all, 

I recently purchased my first duplex, which I am house hacking.  I had an HVAC guy with Hoffman Brothers come out to do a thorough inspection of my water heaters and furnaces before winter.  Bottom line is I need to replace one of my furnaces completely.  I was able to get a used furnace that is in very good shape.  My problem is that the big HVAC companies do are not interested in installing for me, because there's no opportunity for profit for them in that.  I am looking for recommendations of HVAC guys in the STL area that could possibly perform this installation for me.  Please let me know.  

Grant