I have decided to try a wireless setup. The first receiver and the microphone arrived today. It sounded good enough that I ordered the second receiver, a feedback controller and a new four space rack. The guitar works well without a preamp. Hope all this lives up my expectations.

2 x Line-6 XDV75TR digital wireless systems
1 Countryman E6D ear set  microphone
1 Peavey feedback ferret D
1 Gator 4 space shallow rack.