Outer Limits 4x4 Board

Hey, I'm thinking of purchasing a turbo diesel jackaroo.
It's currently running but has got worn valve stem seals that makes it blow blue smoke when you start it.

A) Is this serious?
B) What's the time frame this needs to get fixed in?
C) How much would this cost to get fixed?

Also it's running without a turbo at the moment as the turbo is broken. Apparently the oil seal is stuffed.

A) Do these run alright without a turbo in order to drive it home etc?
B) How hard is this to fix?
C) How much would it cost to fix/replace?

Thanks guys. please help a newbie.

valve seals not that hard you can buy a tool to do them in situ

turbo rebuild ring
Precision Turbochargers

Unit 51/93-97 Newton Rd, Wetherill Park, NSW 2164

p: (02) 97565757
usually 300 to 600 depending on whats needed