Update

I have been pricing a few things lately the vacuum pumps range from just the pump at $150us to akit with the tank switch etc for$400us then ive seen this http://m.summitracing.com/parts/sum-760152 for $270us look good so far. The batteries are changing to lithium iron I got a price of $6000nz for lead acid and i will only get 500 ish charges where as if i go life04 batteries for 1/3 more in price i get 5000 charges i will just have to change my spending to save faster while doing the rest of the work. I was informed that i will need about $800 for the cert so i can drive on the road the down side is the closest testing place is 200 km away so i will need to freight it there and back more$$$ by no means is doing this to save money i could have bought a cheap car and been better off but as i tell pepole "if someone can put a v8 in a mini why can i not put a electric motor in a truck" :)

The batteries

i have found that the blog is done last to first i had been putting the the time around so it read like a book first to last and have desided to leave it alone so hence the change. I was trying to think about the layout of the batteries the pack will be about 900mm x 1400mm so do i put the pack 900 across the deck or 1400 across the deck
900 seems the best option it will keep the weight close to the trucks center less sway going around corners. and later i will up grade the batteries to lithium not lead acid