Welcome to RCU. I am glad to see that some people still take an interest in building there own Planes. Whether it is your first build or 100th build, patience is a quallity that will enable you to build a straight, and great flying Plane. Anytime you are building a kit over plans, or scratch building over Plans, you should setup up enough benchtop or table space to be able to work over top of your plans. You can either use wax paper as a plan protector, or better yet a piece of plexy glass. You want to make sure your building surface is solid, and flat. A little extra room to set things off to the side of you is also nice.
When building from scratch, you may find it better to cut your own kit before you begin. Go through and precut all your own pieces as shown on the plans, and check each piece for accuracy. This will be a time consuming project within itself, but if you have patience, and give great attention to detail you will end up with a kit you cut yourself, and one that will go together great. You will also finds tips and tricks here on RCU on how to cut ribs, and other parts more productively. At times it may seem like it is never going to come together, but if you just keep at it and don't get discouraged, you will end up with a great looking, and great flying Kadet Sr. you can be very proud of, and you can always carry with you the satisfaction in knowing that you can take all the credit for such a nice Plane! Good Luck with your project, and always feel free to post any questions you might have here on RCU. There are many here that are always happy to answer a question, offer a kind word of advice, or share a tip.