The fastest way is to go online and visit various log cabin kit homes manufacturers websites. You'll want to be looking for the log cabin building kits that have an appearance you enjoy. See what you prefer -- large diameter versus smaller diameter logs, color of the log wood, shapes of logs available and how the corner treatment looks to you. As you find cabin kits you like, see how long the company has been in business. You'll want to know they have been around a number of years which is one important factor to consider. Review the kit choices and see what is included, what is not included. See if you can narrow your choices down to 3-4 companies that you may be most interested in.
At this point, you would be ready to visit the companies and talk with their staff. How do you find them -- are they pleasant, courteous, really interested in answering your questions and even offer suggestions for your situation? Or are they high-pressure and inflexible? If they cannot provide something you want, are they truthful and up-front that they cannot do it that way? You'll want to pay attention to your intuition and gut feel. Maybe you'll further narrow the list to, say, two manufacturers. Then you can contact 2-3 log cabin home builders with experience in building with these manufacturer's logs and fastener systems. Obtain estimates for building your log cabin kit home on your property.
You can also learn a lot about log cabin kit homes by viewing cabin plans that have been successfully built somewhere. Every plan that you see can give you design ideas that you had not thought of. You can make a scrapbook of the things you may want in your log home design. Organize a project notebook where you'll keep the builder estimates, schedules and so on.
Creating the log cabin building kit home design that will provide you many years of enjoyment can be a lot of effort. However, it's your personal involvement, enthusiasm and persistence that will help ensure that your project becomes the log cabin building kit home that you'll enjoy for many years to come.