Valuate me this job (only if you can design it later :) )

Hello First of all please DO NOT submit the offer without reading this brief. I am looking for someone who is able to create from zero website designer of horse tack. What I need from you is to take a look at these websites [login to view URL] [login to view URL] What I need from you is to develop such designer for me offering diffrent options (i tried to list them in attachment - but this is only very initial drawing). It is important that application must be expandable so if I will extend the assortment in the shop I can add options) Something similar but very simple is here [login to view URL] Leat me know how much will it cost. If you will have any question ask Regards