D17 head, what to do

OK so in the process of rebuilding my d17 gasser that i recently acquired and am very proud of, even though i have only drove it for about 10 minutes.  Pulled the head due to zilch compression on one cylinder and it was obvious one exhaust valve seat decided to let go. It beat up the head pretty good.  Anyhow sent it away to Napa,(the same guy that said my crank could not be welded) so they could send it to their head specialists for a QUOTE on a repair.  Week later napa calls me and says it will cost me $321 and it will need all seats replaced and some cracks(2) repaired.  I say, wow, and ill get back with you in a few days.  (Mind you the words PRICE QUOTE were exchanged during the conversations several times.) So i called napa today telling them to send the head back to me, and ill go another route. And he responds with oh uhhhhhhh, the specialist already repaired said head.  And he admitted i did not give them the go ahead to repair the head.  He said he would "charge me what its worth to me".  Im new to this.  Do i really want a repaired head on my tractor that had cracks??  Whats your thoughts on this subject?? I am also ranting.  I think i can get a reman. for $375 ish, with new guides and the like.  Or find a good used one for whatever and replace guides and re-cut seats if need be.  argggg.

whatever you are happy with . I have done to heads complete new guides valves and seats . guides where 60.00 valves were 28.00 a piece for exhaust the intake valve were 90.00 dollars for four . then the valve job and time to assemble valve springs titanium retainers and keepers etc. were verry expensive on my two heads. oh by the way both heads have holes repaired where i ported through .

just had a head rebuilt for a 170 gas, 500$ no cracxks

Had my D17 head done last nov for $85.  All new valves, springs, guides and the manifold side machined.

yes if you gave 250 for indy cylinder head work you should feal guilty.