Doc I make and sell high performance fiberglass and single carbon one piece and take down longbows and they are not cheap nor can you get the money that they are really worth so should you choose the custom route bring deep pocket

, however dont be mislead but primitive bows can be made to produce the same speeds, smoothness of draw and stability as their fiberglass kin when made correctly and with the right materials so again even then you will pay the same as a high performance glass or single carbon longbow.
If you are looking for a primitive bow, also called a self bow, then you need to decide whether or not you will build it or buy one made.
https://rudderbowsarchery.com/shopping/ and
http://www.gibow.com/shop/ would be the direction I would suggest as they have fair prices and more variety than most. Alos they are willing to help in most anyway. Gi bow is the newer of the two but I have gone in with their company and done group purchases of 1k strips of fiberglass and everything went very well and smooth.
Doc you need to know a few things when buying any bow and these apply to selfbows too. You need to know exactly where you will anchor on your face, the poundage of the bow, your draw length and your limitations.
I am often asked what poundage should they get. For grown men learning how to shoot a bow I always recommend 40-45lbs. For youth and ladies 30-45. If you will listen to me on this you will enjoy archery much much more and progress much faster as you will be able to maintain proper form and release without being over bowed. I am a grown man, a fire fighter and pretty strong and I choose to shoot 50 -55 max even for all my hunting in North America. I actually love shooting my 45 the most and use it for working on form as well as hunting deer. A 30lbs longbow is legal in my state to hunt with because a properly setup 30lbs primitive bow will kill deer all day if you do your part and place the arrow where it needs to go. Of course your distance will be reduced but this will make you a better hunter as you will then need t learn the lessons on how to get the deer closer too you. Even if you will not be hunting the above lines are examples of how powerful a bow is.
Hope this helps you a bit and if I can help further just "shoot" me a pm. I did not mention any of the fiberglass bows because you said a primitive bow but if you decide that you would like to look at some traditional offerings then just ask as they can be found new for 150-200 bucks and will not have as many "character" traits.