Need Help With Trailer Plans

Hello all. I am new to the forum as well as to any of the "tiny trailers". My husband and I have always been tent campers and are now looking into building our own teardrop trailer. My number one conern is how much the average trailer weighs. I know, by making it ourselves, we can make it any size we want. Our car has a towing capacity of 1000lbs. We were planning on purchasing a very simple 4X8 trailer as a base that weighs approximately 200lbs. Is it possible to make it all under 1000lbs? We are wanting some very simple (as most of them can be!) and really want to get started on the project.
Also, we haven't gotten plans yet, any suggestions on where to go for the best plans? I saw there is a plan section on this site but I haven't explored it yet. I've also seen some on ebay, but I don't know how legit they are. As you can see, we need some help.
Thanks in advance for any advice you all can give.
Also, we haven't gotten plans yet, any suggestions on where to go for the best plans? I saw there is a plan section on this site but I haven't explored it yet. I've also seen some on ebay, but I don't know how legit they are. As you can see, we need some help.

Thanks in advance for any advice you all can give.