Here are some photos of my 3cm narrowband setup.
Kuhne 10G2 Transverter built from kit in 2005 ish.
G8ACE 106.5MHz ovened oscillator
Kuhne style 8W amplifier built from kit
Dish is a Zone2 Sky Minidish
Feed is modified LNB Horn that came with the dish, some 22mm pipe and cap added to feed it from sma connection.