Horta à Porta How to select

I HAVE CHOSEN TO LEAV HERE THE PROJECT DESCRIPTION SO THAT YOU WILL KNOW WHAT I AM LOOKING FOR. SO FAR I HAVE RECEIVED 24 PROPOSALS BUT FIND IT VERY HARD TO DECIDE. SO, i HAVE MADE A NEW DECISION: HIRE SOMEBODY TO HELP ME DECIDE UNDERSTANDING THAT I WILL NOT AWARD THE ENTIRE PROJECT AT ONCE: FIRST I WANT A BASIC WORKING MARKETPLACE, SECOND i WLL ADD ON DEMAND SERVICES LIKE DOORDASH AND UBER-EATS; THIRD WE WILL WORK ON BELLS AND WHISTLES SPECIAL FEATURES. WHO WHICH SHOULD i HIRE AND WHY. To define define this proect I use some Buzzwords: PWA, omnitrade blockchain marketplace (multivendors ecommerce on demand food distribution). It may be something similar to Grubmarkket doordash and uber-eats integrated under blockchain platform? The marketplace is intended mostly for farmers. they may be able to build their shops but generally do not have that capacity, so we will have to do it for them. We will not charge them any fee but they will offer a credit of 30 days. The customers will buy fron or generally various shops but pay using a single cart after payment with points or tokens the order goes to each shop/farmer, to the admin and to the person in charge of delivery who collects orders from each farmer and delivers them to customers. There is no delivery fee for farmers' products on regular delivery. A fee will be charged on express deliveries. All customers will receive a points/token credit to start shopping and a discount percentage on any purchase. There will be a possibility to review/evaluation of the service . Further details will be discussed progressively as the job is being done. WE propose to pay a fixed amount for a basic working marketplace and a case-by- case fee for upgrades .