Hi Frankie,

Before you do ANYTHING, make sure you have read the stickies in here:

http://www.buildyourownguitar.com.au...splay.php?f=57

Also watch the videos here:

http://www.pitbullguitars.com/videos/

Then do a test fit, just to make sure everything is there - obviously you don't want to actually fit everything but lay it all out to make sure nothing is missing and the neck fits the body etc.

As for sanding.

Slowly, lightly, with the grain. Stop, look and feel the surface - you'll get a feel for when it is time to move up a grade of paper.

Above all else, do not rush. If you are unsure, stop, think and if you can't work it out ask. There are plenty of skilled artisans here who are willing to help.