I'm not sure what you're referring to when you say "condensator."
The only openings are behind the passengers seat.
Which Zeetoolman box do you have (V1/V2/V3)? I'm going to assume you either have V1 or V2 because you mentioned using the JL10W1. The SEAS SW250/1 is a good choice for the enclosure. However, what type of sound are you hoping to achieve? Lots of bass, more sq, a little of both? There are lots of good subs to chose from depending on what you're after.
D'Ecosse's speaker plates for the SEAS Lotus reference set should come out more than the SOS speaker plates. I know he builds out the rings to 3/4" or 1" to accommodate the speakers and bring them closer to the speaker opening.
SOS harness is fine for what you want to do. I believe they can put 2 sets of rca's on there (one for front, one for rear) if you ask. If not, contact Bailey (Malibu Rapper) and he can build you one.
What type of control(tuning) do you want to have over the speakers? I ask because this will somewhat dictate how many amp channels you need, as well as how many amps you want to use. If you want to be able to tune each speaker, you'll need 5 channels (either 4ch. amp + 1ch. amp, or 2-2ch. amps + 1ch. amp, or 5ch. amp, or...get the picture?).
Do you want to run your speakers passive (with the supplied crossovers) or active (with an external crossover)? There are pros/cons to both setups.
I'll write more when I have more time