Was thinking about the converter first. But 200,- is kinda steep if you decide to merely mess around a bit with it...
What about this thing. It does banjo <3 ... And sitar, among a range of things. A little less synth than the options above though.
As iconic and extensive as it is, the Boss range of pedals has never included a proper guitar synth — until now.
www.soundonsound.com
"With the hex pickup installed, the GP–10 opens up a whole host of possibilities. You can, for instance, transform your guitar, through Roland’s COSM modelling, into different types of guitar. The COSM models track with extremely low latency and very high accuracy because they’re based on your actual guitar sound, rather than on MIDI. The models include various acoustic guitars, Strats, Teles, humbucking pickups, hollow bodies, dobros, a banjo, and even an electric sitar. You can change tunings at will, and add a tunable 12–string version to any guitar model.
The GP–10 also includes polyphonic effects, such as the Crystal metallic sound, a Slow Pad for string-synth–like effects, and Polyphonic Distortion. This last one produces ‘singing’ distortion that you can use to play complex intervals on the guitar without generating the audio hash that typically occurs when you play chords and intervals through a traditional distortion. Fans of Roland’s GR–300 ‘80s guitar synth should be pleased to find a complete emulation of that unit. Finally, the GP–10 throws in the proverbial kitchen sink — a dual–oscillator polyphonic synth that generates fat leads or retro–cool pads, reminiscent of synths of the ‘70s and ‘80s."