Would any of these items be interesting to you for trade?
Cosmos Famiclone Game Engine (Discrete system, not an NES-on-a-chip)
This unit has been modified in several ways. The clone CPU/PPU has been replaced with real Famicom chips, and the AV out circuitry has been modified to output the cleanest picture possible.
Custom made multi-player adapter (Famicom to NES)
This adapter was custom made for the Famicom/Cosmos Game Engine. It plugs into the expansion port and allows you to connect regular NES controllers for multi/single player action.
Final Fantasy Chinese Original de-make (Full modern trilogy)
This is the famous Final Fantasy Chinese Original trilogy which is an 8-bit demake of the PSX versions. These are the original boxed copies. Includes FF7, FFX1, FFX2, and FFX3. Interesting to note that the story actually arcs over FFX1, FFX2, and FFX3, so instead of multiple CDs, you need all 3 carts in order to complete the story!
I'd be willing to trade this lot if your interested! Feel free to let me know.