I agree with Chris. I think you would be surprised at how easy this project would be with only a few simple tools. The only power tool you would need would be a drill to drill the tang hole. Any shaping/fitting could be done with a few files, sandpaper, etc. When you get into blade making, it's a different story, and you definitely see a lot of complex tools used by the guys on here to achieve that "perfect" fit, but it can be done by hand if you want. Also, you can find stag on various knife supply websites and auction sites for a good bit cheaper than the $100 plus hand picked stuff that goes on Lin's knives, more in the $25-$50 range. You have to keep in mind that his are Master Smith's knives that sell for a couple grand sometimes and require high quality materials to match the level of craftmanship that goes into them. I think the point that he was trying to make was that alot of guys on here keep a stock of expensive high grade handle material that they wouldn't want to use on a knife that they didn't actually build so don't let those prices discourage you.
I'm not sure how the pommel is attached to this particular knife, but if it is threaded, it would be pretty easy to disassemble/reassemble. I would suggest trying to figure that much out and take the knife apart if possible. Make a new post asking for help building a knife with a picture of the disassembled components. The diasassembled view will help them to see exactly how the knife will be constructed and allow them to give you more detailed advice as to what type of materials you would need (ie. scales vs. 1 piece) and how to go about putting it together. I know from my own experience that a lot of guys on here will be glad to give you some help.
Legal Discalaimer: This is a very addictive hobby! If you do not want a new hobby that will take up a lot of time, do not give this a try! I will not be held responsible for any issues resulting from the following of my advice: Loss of job, loss of sleep, divorce, etc., etc.
Hope this helps
Matt