Hi there, I have gone through your description and understand the purpose of application. I noticed the main functionalities to be added to the application. As I am expert of these type of solution. I can give you the best implementation of your idea of selling equipments.
I am a full stack developer , having 10 years experience with 100% job success rate.I have extensive knowledge of Core PHP and it's frameworks (Symfony, Laravel, Zend, CI, Cake), JS and it's Frameworks (React, Angular, Express, Backbone, Express, Node, Moment, Vue, Typescript), Ajax, HTML5, CSS3, jQuery, MySQL, and Bootstrap. I am very much interested in your project and want to get it started right away.
Looking forward to hear from you.
UT