Developing B2B SaaS WebApp. Need developer for Short - Medium Term project

Looking for: I am looking for a full stack developer to help with a short / medium-term project to set up a B2B SaaS webapp platform (desktop & mobile use) on which it would be possible to share art, and host numerous log-in accounts for users. Users would be able to interact, post fundraisers. Later down the line, I would be looking to incorporate some form of data processing and visualisation mechanics of that data, but that is for a later stage of the webapp development process - something to bear in mind for now. Method of work: Work would be done on a fixed fee basis. What I have: At the moment a Figma design is being generated, ideally to be ready by end of June. There is no domain set up as yet. To apply: If you would like to be considered, it would be really good if you could submit: 1) Any example completed webapp projects (ideally in the art space) you have worked on previously, with the costs of each of that project - this is to help me to gauge the costs involved relative to the webapp project you have created; 2) Your fee estimate of total costs; 3) A time you would be available to have an introductory call; Anything else you would like to mention. Timeline: 1st stage - please submit a response to this post 2nd stage - once a rough Figma design is more or less ready (by end of June target), we have an introductory call & discuss process. 3rd stage - we work together on any further modifications that need to be made in Figma 4th stage - transferring design into webapp