Your project as specified above needs much more information to properly quote. If no more information or clarity is asked by or given to you then you might get three quotes say, from 45K, 65K and 85K.
You might think it is crazy but ALL THREE quotes might exactly be very fair;
Without more information the quotes might be based on Contractors perspective the way they sized up you and your home. The car you drive, your current interior, your profession, your clothing, jewelry, area you live... etc. are all visuals that paint a particular lifestile. And lifestile has levels of quality, detail in product and workmanship. Don't get me wrong... this doesn't mean we simply charge more for the same work, we don't; The work changed in many ways in level of care, complications, special orders etc... if you go up from basics.
All three quotes can be put together with integrity and value but if your not on the same page on the scope of the project you won't win.
As a contractor we do budget, mainstream and very high-end work, so three levels of life if you will. Choice of product, supplier, resale of home, timing, custom work, other trades, degree of detail expected are all things I discuss with my clients. Oftentimes I ask for sources of their inspiration (magazine, pics from web etc...) and ask for visuals.
I have been wrong or misguided and quoted 'high-end' whereas my client wanted 'budget' or 'mainstream' level work done and so I did not get the project. Also the other way around that I quoted too low and throughout the process my client started buying all these expensive materials that steered me in a different direction and it was time for a conversation of clarity.
Some clients see a project completed elsewhere that inspires them to do the same but have no idea what the costs are. Not providing clarity will likely cause some friction during the project.
Example: Quoted for a floating laminate floor over tile as this was specified as such and clarified by discussing types of flooring and costs. My client was going to buy the flooring and have it ready on the start date.
Upon our arrival we see some skids of hardwood solid oak flooring instead of laminate. A totally different job at cost, not even near what we quoted but she liked it better and thought what difference could make?. It was still completed but this client was not happy (because of the added costs) and a waste of my time because it was reflected on me.
Once clarity is established on a project with a few visits to a client I often do ask their for budget and find 90% of clients have no problem with that since a level of trust has been established. It also helps that we only work on client referrals and do not advertise. My client must be happy otherwise it has been a waste of our time. Often times there are contingencies during a project that need to be addressed.
In the odd case we do go over budget but it has always been because of contingencies. In the end the client ends up with a finished project they can include to a re-evaluation of their property and, just like the tv shows, always comes out on top with more equity.