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1945 P-61 Cost.
Army Air Forces in World War II
$ 199,598
I don't know if this includes the cost of radar equipment.
1943 Ju-88A4 Tropical Production Cost.
Unfortunately I don't have a price for 1945 Ju-88G. However it's probably less as the production cost kept dropping.
http://www.econ.yale.edu/growth_pdf/cdp905.pdf
139,274 marks.
$ 55,710 if we assume 2.5 marks per dollar.
This does not include radar equipment cost.