[xj-s] Cheap XJS V12?

I am relatively new to this list, and I have been reading it with intrest,
I especially enjoyed the tool explanations.

I have been recently offered a '83 XJS V12 (78k) for �400, it is a MOT
failure as the rear brakes are siezed off.

I would like to know what you jagsters think to the price, is it worth it,
and how much hassle are the rear brakes going to be ?

Thanks in advance

'84 XJ6 4.2 (in need of an exhuast front-pipe)