While your determination is admirable, it reminds me of this commercial:
Get a multimeter and start with the magsafe port.
Luke 14:28 For which of you, intending to build a tower, sitteth not down first, and counteth the cost, whether he have sufficient to finish it?
here's the 2.26 logic board: http://www.welovemacs.com/6615230.html
here's the 2. 53 logic board: http://www.welovemacs.com/6615231.html