Does the condition matter?
I have a white pc engine in bad condition I use for testing games, somebody scrubbed it with wire wool or something.
I had two of these from the same Japanese seller (who I will never purchase from again.) AV+region modded by myself. No leads except the AV lead, would be happy to let them go for $55 shipped. One is already sold.
It's not really possible to get them cheaply in good condition because the sellers in Japan have to ship them and the sellers in the USA have to add the Japanese shipping to total. I buy all my units from Japan so you see what I mean. The rate of the yen to dollar is also very high at the moment. I pay on average $35-$55 for unmodded consoles including japanese shipping then you are talking $35 for each mod. I can only sell at a loss if i feel I got a bad console.