Need an advice on my inspection report!!Sorry Im panicking but this is my rental purc

[Amer Swid]

Hello,

So the inspection report came back with these red flags, the offer for the house was 300k, then i asked for 25k reduction and they take care of all the hazardous stuff but they said ok for 25k but you take care of everything.

Anyone know how would approximate be to:

1) put chimney flue

2)do knob and tube rewireing (i heard it will be costly around 30k)

3) change furnace

4)pluming and asbestos (not sure if I should do anything for the asbestor)

any help will be much