More than it would be worth probably. I'd guess £150+
Why not either strip it and if it looks good give it an oil finish, easy to do and 'thinner' than nitro
or, wait until it's wamer and get some cans of nitro from Manchester Guitar Tech. I stripped and refinished a strat which was not too difficult. You should wear breathing apparatus when working with Nitro though.
Stripping polly is a pain but should be easier on a Tele as it has less contours....