Don't do it. A detailed quote, showing labor and materials, is a valuable document. It's the rough draft of a project plan
Very wise man, you is, like a wise, veteran contractor/businessman.
I moved and when in a new area, I put out a lot of feelers to see what the local market was like. I got one guy that bit on the "free estimates" thing. I visited his house and walked through with him all the work he needed to have done. About a minute into it, I realized what was going on. He was a rather studious and meticulous customer, making sure he bought all the right material in the right amounts. Man, don't we as professionals appreciate an informed and attentive customer?
Never got that obamajob.

Yeah, it was pure fiction. On the bright side, with his detailed material list, his job will oba--I mean--fail. He won't be able to do the processes needed but he will save 'big money!' :laughing: OK, he might be able to slap/vomit up something.... but while it probably will look like fecal matter, it WILL fail.
Oh...sorry, got distracted for a moment. What I left out for his line item materials list--I'd provide
FREE! Yes at NO COST to him!!!--was what would make the whole thing work.
Yeah, those were leftovers (free to him) that would make that job work were from the last job or second to the last, or buddha only knows how many jobs ago.
I dunno. Mebbe I should keep track of every nail and screw, every inch of material, weigh every bucket/pail, etc. Nah, someone else will just show up on that (or many other) homes and after the owner fully badmouths the "previous contractor" that "cheated him" and "did such shoddy work".
Cut him/her/it a break due to their misfortune and they will work with you too! :laughing:
Yes, this is why I rarely do residential as it's too hit and miss on the owner's end, and in their defense, the residential remod market is the most screwed up market their is.