Welcome to the Board!
Not to be contrary...just expressing my opinions and trying to be of some help...
Avoid precut kits...cutting skills take some practice...but if you want to learn, you're going to have to make some mistakes...of course, that's not an issue if you just want to make one quilt.
Think about a rail fence for a simpler, smaller project.
Log cabins are not nearly as simple or easy as many seem to think...especially if you don't have that consistent seam allowance mastered. I do believe that E.Burns does it as well as it can be done...her books are great for all skill levels.
Make a couple of sample blocks from low cost fabric before you commit to the expense of enough yardage to do whatever you decide to do.
Relax...this is supposed to be pleasure!
Using a printed paper foundation would greatly increase the accuracy of the blocks...but not everyone enjoys the extra steps enough to use this technique.
Whatever you decide to do...you've got lots of folks here to encourage you! Have some fun...enjoy the process...best of luck to you on your new project!