A new scenario for me

[Phil Bondi]

Hi all.

-client needs new bass strings (don't ask), but string maker 
wants to see the whole set. Apparently, there's 3 different 
scales for this particular Yamaha. Yamaha can supply the 
right scale, but I already quoted the client a price, and 
Yamaha's price is near double what the other string maker 
wants for the same set.

-Piano is in client's home.

Obviously, I need to remove the old strings so the right 
scale can be made, but is there any danger of keeping the 
rest of the piano at pitch while I'm waiting for the return 
of these strings?

Sorry if this seems academic to some..I've never been here 
before, so I thought I'd ask.

Thanks,

-Phil Bondi(Fl)