This is a tear down video that's pretty detailed its for a Santa fe but the motor placement and assembly are similar the Tucson
https://www.youtube.com/watch?v=rZ2rtr5-2MU
This guide may also prove helpful
http://www.hyundai-forums.com/sm-2001-2006-santa-fe/98820-ultimate-timing-belt-diy-guide-2-7l-v6.html
and finally what to look for when aligning the marks
http://thumbs.ebaystatic.com/images/g/r~MAAOSweW5VVzkP/s-l225.jpg
Hope this helps