Knob and Tube wiring

[Curt Bixel]

I have a duplex in Clintonville that still has a fair amount of active knob and tube wiring.  If I talk to the electrician, he actually thinks the knob and tube is in good shape and is fine.  I am looking into using this duplex as a short term rental and have been told that the knob and tube wiring would need to all be replaced if the home were to be insured for this purpose.  My current insurance company is fine with it, but does not do short term rental policies.  

I am curious if anyone knows if it actually is possible to get good short term rental insurance with knob and tube wiring present.

If not, does anyone know how much it might cost to have the electrical fully updated.  I have included some details below:

- It is a duplex
- 1100 sq ft per side
- built in 1918
- plaster and lath construction
- both electrical panels have been upgraded to 150 amp systems with new electrical panels
- new furnaces and hot water heaters with upgraded supply wires for each.
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