Seems you'll need 2 distinctly different amps, or one that can do both jobs. So IMO you'll need some sort of digital processing to minimize the equipment.

All things being relative, I could suggest a Fender Vibro Champ XD. Nice little 5watt tube amp with digital pre-amp voicing. This includes, among several electric guitar amps, the Fender Acoustasonic, which would be great for your existing guitar.

I've got one, plus a couple 20 & 25 watt SS Peaveys. The Vibro Champ is far superior in my opinion.