How to remove a bathtub without damaging tiles?

Hi I am the one who asked if I could remove the bathtub without damaging the surrounding

tiles my bathroom is was constructed like this

|tiles wall

| position of bathtub l

_———————////////showerI just want to removed the bathtub because it was to high for me to climb up

I am 75 years old and widow

the sizes of the bathtub is

(64 length

35 width

the first contractor I talked to told me no way to saved

the , he must remove all the tiles

the second contractor I just I talked to told me

$30;000 is his prices

My husband and I was the one who built this house

from ground to up , because we don’t know how to

dea with contractors , the first contractor under

bid meaning cheapest price, what we don t know

HE put the word unforeseen in and the contract,

after the money runout he was asking for more money

and when we did not give to him he sued us , he

win because of the word unforeseen

Today I am scared to deal with any contractor

in your opinion how much the realistic price i should

Accept on this kind of jobs, no painting

No floor tiles, the , using the present Plumming

mila