I did with my $50K number, why did you not understand that?
No, the rocket science part would be easy it's the not knowing the size and numbers of the branch circuits and feeders, does the work after be done after hours, is it a sterile area, stainless steel, etc'''. BTW, if it is stainless double my number.
See above and then tell me why it would be so hard to give all the information if you want an accurate price. It's no wonder some engineers just spin their wheels while others excell.
Roger
		
		
	 
The operative word here is IMPOSSIBLE.
Cognitive resonance is definitely missing here. I don’t have to read it again.
OP said it’s in the ballpark  of 
“HIGHER THAN 5 K.”
What he was trying to do is,  give an idea,  that the cost could be substantial. . . that it could cost anywhere between 5K and anyone’s reasonable guess to perform the job properly-- that will comply all requirements for this kind of project.
Specifics is not a big issue here.  You were given the criteria that is: 
“relocate the panel”.
You are already given the type and size of panel (i.e. voltage, location etc)
The most important thing to do is: doing the job properly, code compliant etc.
It doesn’t matter how a skillful tradesman would do the job. You as a tradesman should be able to determine that.
If you can do it cheaply than the competitor, and pass inspection. . . then more power to you.
This will be your competitive edge and even 
separate you  as a man from the boys.
Your 
fallacious comment shows, when you say: 
“you stand by your budget number.” 
The 50K you alluded to is a possibility--but it may cause the owner to balk at that guess.  What happened to critical thinking?
Relocating  the sink (as others had said)  would most likely be cheaper.
OK, the above is an opinion which involves yours and mine.. . but, if you compare  building a wash station with a sink would be cheaper than 50K.
I installed a new bathroom with brand new plumbing fixtures, water closet, sink and shower only cost me less than 30K.
All you are doing is showing your  interest in giving unproductive  comment; hence , OP’s retort  “  . . . 
you don’t trust who I say is who I am. Every time.”
It would help, you as moderator --if you  could be more accommodating than being adversarial.
Having to go this route (plumbing work) would mean the work would involve a plumber only  . . .no electrician.
So, you can include in your cost-- your charge for consultation. . . that is: 
sewage technical assistance. 
I stand behind my word.