MacMode.. i feel your anxiety.. recently i got an alarm and for the busa and was really worried about the wiring. so i practiced the wiring..
i went to walmart.. and bought an electric kit, $13.49 or so.. in the automotive section.. it comes with all the necessary tools... i already had a sotter iron.. like $7 bucks.. i bought some sotter.. so i got some wire (the kit come with about 10 feet of 18 - 20 gauge wire) and started practing..practiced splicing.. over and over.. practing sottering.. made shapes,, circles. etc.. just had fun..took my time.
this was my first time with the sottering iron.
i spent about two hours... then i felt comfortable to and tackled the hayabusa. went into the garage. and with and completed it.. no problem.. (of course i got help from some people on this board.. )
thats my advice.. invest in about 20 bucks of electric stuff.. and practice... good luck.. let me know if i can help.