I live in the UK - the parktool FR2 is approx USD 21 here inc shipping - I only paid USD 35 for the bike in question - the wheels were kaput, so I paid USD 25 for an old Weinmann pair which this freewheel's attached to.
With new tyres, tubes, cables, brake shoes already bought the bike is now worth far less than the sum of it's parts & I'm trying to keep costs down.
I have a good friend who's very useful with power tools, so we're giving it a go.