Arduino Nano VRX Sketch

I need a clean, well-commented Arduino Nano V3 sketch that drives the mm238rw 5.8 GHz eight-channel video-receiver module (datasheet link above). The program must let me step through all eight channels with two simple “scan” push-buttons (up / down) and show the current channel on a small LED display. Please keep the code lean—no extra libraries beyond the usual Wire/SPI or a lightweight display library.

Along with the sketch, I also want a complete wiring diagram that shows:
• Arduino Nano V3 to mm238rw pin mapping
• Connections for the two scan buttons (with proper debouncing)
• LED (or small character/OLED) display wiring and recommended part number
• Basic power layout so the receiver gets a clean 5 V supply

Deliverables I can drop straight into my project:
1. The .ino file, fully commented
2. A diagram (Fritzing, Eagle, or clear PDF) of the exact assembly
3. A short read-me that explains any library versions used and how to add or change channels later

Tested code that compiles in the latest Arduino IDE and a diagram I can replicate on a breadboard will complete the job.