A series of questions to get me going.

[Stevo]

whew! 500watts is more than enough for you. If you swap out all of your lighting with LED's you will find that 150watts will be more than enough for this build, even if you run a 65watt halogen headlight. Unless you see yourself upgrading and building a more powerful system down the road...
Keep your eye open for deals on these: ww.vicorpower.com/products?productType=cfg&productKey=V72B15C250BL

They are super small and reliable. Very powerful for the space they use up. Hard to find a good deal on these, but they do come upon ebay occasionally. You just need to be aware of the model #'s as they make a huge variety of different inputs/outputs and wattages.

[frodus]

Vicor are good (I used them all the time for work and for my first Lead acid BMS and for my main DC-DC converter, but I had trouble finding them in this voltage range, at this power level, for under $200. Used is good, but who knows the internal stress/condition. The pins are Tinned (even if you get the batmod), and corrode eventually. Just keep those things in mind.

[andy]

Frodus, Can you PM me what you think you can land one in Ireland for ?
They aren't 8*5*5 is big enough

[frodus]

Andy,
head over to the site, and add to cart, and submit a quote. Then I have your shipping info and can give you a formal quote/invoice.

[andy]

I think I have done that.
let me know if it's not there

[frodus]

Got it, will take this offline with you.

[furyphoto]

I think I have a few vicors kicking around in a box. The output can be tuned with resistors. I will dig them out if anyone is interested. I sold one before for 100 bucks.

[andy]

I have bought a servcon, it's way more than I need but maybe ill add a light bar or something!
lol

[Stevo]

You can hook up some tunes with some serious speakers!! The Sevcon DC-DC is great!

[andy]

Maybe some neon, or a selection of Christmas lights.
The sky is the limit!