The stock reg/rect is junk and wont handle the extra load very well. Look up a TourMax(japanese made) heavy duty Reg/Rect with the big heat sync. I had excellent luck with them on two different bikes which were chronic battery eaters before hand. Handled all my accessories even at lower rpms, very impressive.
As for the guage cluster and lighting, check out these two write up on that exact topic. It should help your decision making process
Guage: http://www.musclecross.com/jetbox/index.php/item/280
Lighting: http://www.musclecross.com/jetbox/index.php/item/281
01 Aprilia Falco SL 1000 - Ohlins, Derestricted, SL Carbon, Chip'd, 520 Conv. Flies!!!
94 CBR 600 F2,F3 Engine,F4i Guages/Body/Tank/RamAir,Short Shift Kit,14/43 Sprockets,DynoJet Stg 1,K&N, Yoshimura RS3, V&H PowerPack, 520 conv,Sliders, O2 Sensor - and Sold it!
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