A potential client requested an estimate for an pretty large e-commerce website with ~20 pages pages, item customization plugin, live chat, newsletter, slideshow, automated e-mails, payment processor and lots of different functionality that will require 430+ hours of work. We will be doing everything from setting up the database, servers, design, etc.
The entire estimate came close to $30,000. The client owns a very large company and can afford it and has many potential projects in the future (so he said). He did not complain about the price; he simply said he'll compare all the estimates and let me know.
Was my estimate reasonable? How much would 'professional' web development studio / company charge for such a project? I would hate to lose this client, I am not sure how to proceed, what would be a good way to respond to him wanting to 'compare estimates' in a way that slightly persuades him towards picking me?
I appreciate any suggestions, thanks in advance!