Until if you are looking for making customize or exceptional deigned then spending that much money for making your bed isn't wise. You can buy a nice platform bed from your local furniture store for around $250. You can also buy one from online stores, maximum time they will provide free shipping.
My suggestion is if you are going to buy platform bed then you should read customers opinion about the product, that may required some times but you will get the best product for your money.
I found this website really helpful for whom who is going to buy a platform bed.
http://www.bedtimedeal.com/best-platform-beds/
I hope it helps!