Ive had terrible luck with "built" motors...I broke a crank on my LsVtec (go figure <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/blush.gif" border="0" valign="absmiddle" alt=':blush:'>  
so I am trying to avoid that route...for now i would like bolt-ons (cams upgrade turbo DP's ect...)
but ADEY i think i will prob stick close to your formula...sr and good suspension