You've used forte in context so you'll do just fine
You can download the rule book from this website. Go to "About the DLRA" and you'll see "DLRA Rule Book". Open that, hit the download button and before you know it you'll be an expert! You should also check out the build diaries on this forum and also on www.landracing.com
. After you've absorbed most of that you'll be in a much better position to know how to build a car to an acceptable standard. There are millions of other things you'll find on the web. Google "lakester", especially the images page and you'll be reading for weeks. Once you've done most of that feel free to ask questions here, there are plenty of people who will be glad to help.
A few tips to start with: Don't just build it from the stuff you already have lying around the shed and don't reinvent the wheel. If a part is right for the job and available commercially buy it, don't make it, it will save time and aggravation and probably money in the end. Get a few mates to help, as Dr Goggles once told me, trying to do it on your own will break your bank account and your spirit long before the build is finished. One last thing, find a nice double shed to build it in.