Looking for purchase advice.  Found a 1991 Lopi Freedom LX insert and surround that supposedly is in fine operating order, no cracks or damage, except for a blower that does not work.  It has square secondary tubes (he says) and the fire bricks are not broken.  I have not seen it.  Is it worth $500?  More?  Less?  Seller says a new blower could be $280.  Any advice?