Going full-cap is not for you at the moment as you have good sides and back. Simply make a template representing the area requiring coverage...doesn`t have to be spot-on to the nearest millimeter...just a representation of the area and skull-shape/contour.There are tutorials on youtube of template making http://www.youtube.com/results?search_qu...aking&aq=f
You can specify a percentage of grey to be interspersed in the system..... if you post a pic of your remaining hair we can advise on density to order. Hair growing underneath a system is not an issue..simply use an electric hair trimmer to buzz the hair when you do your de/re-attachment..... Paul.