internally balanced 360 crank (BIG PROBLEM) need input

i talked to the guy who did the crank today and he said he see the motor witch is fair im going to pull it out tonight and put it on an engine stand so it can be inspected he told me if his crank failed he would cover the cost of all the parts and all the fluids and rebuild it all at his shop on his dime i asked him if he would cover the cost of me having to pull it all out and then reinstall it all and he basically said no then my friend said what if we weren't capable of doing all of that and had to pay someone to do it and he said that i would ave to eat the cost which i think is bull but whatever i then told him that if it was his fault and he fully rebuilt the motor that (no disrespect) but i would not feel safe putting that engine in my car he got all pissed obviously and then i told him the only way i would feel good about it would be if i took it to a shop of my choice to someone i knew and had it done where i can see it and be a part of the rebuild and he flips the bill for parts and labor he got all choked again and said if thats how i want to handle it then he will refund the money for the balance of the crank and that i would have to go after the guy who built my motor and he would have to deal with them. i then asked what his warranty on his engines is and he said 1 year or 20 000 km i told him i might think about letting him rebuild it (in the back of my head thinking there is no ******* way this guy is touching my motor) then he kinda comes around and goes if we can deal with it like that then maybe i can try and figure out some labor money for you for doing the re and re on the motor. so basically im gonna pull the motor and i want him to come take it apart in front of me either at his shop or at my house im not gonna give it to him to hammer on something and then try to blame it on something else i want to be there when he see's what happend to it and i want it fixed at the shop of my choice does that not seem reasonable? all i know is i am stressed out to the max and im only 24 i cant afford to lose all my hair also big thank to everyone's comments im gonna go look for another hole that may have come out of if not i will still assume he just welded on a chunk of **** to the crank ill post some photos tonight or tomorrow