Best soundfont-based Linux MIDI software combo for live?

Am seeking input concerning the best software set, for using a MIDI keyboard with a laptop as soundfont-based MIDI module, for live keyboard work. Right now I have a Yamaha NP-30 as a keyboard controller and a laptop as soundfont-based module, thusly: Keyhit, Yamaha NP-30 -> Yamaha UB16 MIDI USB2MIDI -> Jack, MIDI side, configured via qjackctl -> qsynth->fluidsynth/SoundFonts -> Jack, Audio side, configured via qjackctl -> ALSA -> Speakers. Now this is all the tone-flexibility I need: I will be making my own soundfont or two eventually, but what I really want right now is a topnotch piano and string-section sound, optionally layered. (I will probably use ZynSubAddFX sometiems, for a few tones, too; it also works well, and similarly.) The above is good, with exceptions: 1. I have to GUI-it-up manually every time. I thought LASH might automate the setup, but it doesn't seem to know about qsynth or fluidsynth. What is the best automation? Do I really have to go all the way to Bash? :-) 2. I need reverb. The qsynth reverb generator is not working, and I don't know why; it appears to be a bug that has been brought up without response in a few forums. Anyone figured it out? If there is a solid alternative to qsynth for soundfonts, ALSA or Jack or both, I do want to know about it. I understand I can add a reverb generator within a Jack patch set; if anyone recommends this approach, I need that too :-) 3. Will I get noticeably better results overall if I go GUI-less? The machine is a 2.5GHz with 1/2G RAM, and CPU usage has happily been shockingly low (I credit the high quality of 64 Studio, it has surprised me many times). This is mostly intended for live work, which may be a factor in favor of GUI, for on-the-fly debugging (and on-stage emergency fixing). I am reasonably good with Linux command-line, but obviously, it is a major shift of focus, and I don't want to do it if GUI is solid enough: if a virtual cable is cut it's fairly easy to understand in GUI, but if I have a pile of audio/MIDI applets needed and just one is malfunctioning, that might be quite a lot harder to diagnose from ps aux ! All experiences very much appreciated. J.E.B.