I don't produce reggae, I produce D&B/Jungle I do restore some rare Dub/Reggae though and I know it's sound, perhaps I could offer you a few suggestions.
It would be a good idea to familiarise yourself with electronics to the extent that you can maintain a nice selection of your own analogue equipment, so you could service an analogue mixer, repair a damaged channel fader or a glitchey pot on a synth or service an analogue tape delay (Entry level stuff) but it will save you a hell of a lot of stress and money in the long run, electronics knowledge is essential these days as analogue kit is now getting very old and requires a high level of maintenance.
Why use analogue at all, well I wouldn't build a purely analogue studio the digital world has a lot to offer but there are many many elements within Reggae and Dub engineering/production which simply can not be achieved using modern digital technology, for example - The Fisher Spring reverb (The Tubby sounding Reverb) can not or at least has not yet been successfully been emulated in the digital world, the same go's for analogue tape delays like the HH and the Roland RE series, also to some extent synthesizers themselves (Most of them ok sure but) synths like the Amdeck PCK 100 han't quite been replicated. Digital is good at what it's good at you know, recording or intensive audio processing such as de-noising, spectral analysis etc, it's not "the" most creative tool as yet, even controllers like the monome, the Maschine and various other midi usb devices are starting to show signs of falling out of favour with producers because they rely so heavily on "Software" as opposed to something analogue that will produce (Real) sound).
Some production techniques I would look in to adopting might include (harmonics) particularly applying Harmonics to Bass, learn how to draw out harmonics out of Bass using real bass playing techniques and also EQ's or subtle amounts of distortions.
Distortion is not often thought of as playing a very large role in dub and reggae production but in today's age of crystal clear audio technology distortion is most important, contrary to popular belief distortion doesn't just make sounds appear harsh and "Distorted" there are many naturally occurring subtle distortions present within most analogue equipment, from a slightly over driven analogue reel to reel, to analogue mixing desks, valve amps and effects units etc, much of the time it's this distortion that gave us what we now consider to be the "analogue sound" adding harmonics to the music and creating what we now call "Analogue warmth".
Digital is all good too, though I would recommend as much of a hands on approach as you can afford to use with regards to mixing I wouldn't even attempt to try to mix solely in a DAW for example, use real kit and real energy in the mixes you are creating.
If you want to hear some of the best engineering in the world of Dub look to The Scientist
http://www.youtube.com/watch?v=H-Cr7s71RS0 he has a very distinctive sound in the most part due to his engineering techniques, Personally I like a lot of the Treasure Isle Dub releases also, these are very well engineered with a very distinctive "Silky" sound.
It wouldn't hurt to learn Bass and build yourself a collection of decent musicians around you, perhaps put together a small horn section or a vocal group, not so difficult or costly to do, it would take time to find the right people but simply having the right artists to work with you regularly who are like minded, inspiring people to yourself is more than most people achieve.
Sorry did I just go off on one there for a little bit? lol. This is just my pov and a limited one at that, I would have thought most of what I've said is pretty intuitive anyway and nothing is set in stone, different people work best in different ways you know. . . .
/whispers (Boost 5k on the hh'ts) lol. . .
Musitronics.
Mu-tron Bi-phase (Stereo phaser) can also still be found but not so cheep, mine cost me around $1400.