the mounting options are easy. you only need to drill holes for the different attachments you may want. the tec lok is a great object, and will do anything OWB yuo will need (probly), and you can get the "pull the dot" IWB loops to use for that. all you need there is a .25" hole. two would be best, to avoid the knife moving around, but one is suffient.
most of the custom sheath work starts at about where you are looking at.... what is your location? i owe a member here a sheath, and if you wanted to stop by i could help you build your own.......