I think it only needs a clean ( albeit a good one) the console is under a cover and the mould on the tubes say it hasn't ben in the water for a year or so (probably 2). the licences on the back say it was last in the water in the 2001 season
But the Avons are made proper so the tubes probably won't be porous yet.
You'd probably get that back up to scratch in three daysproviding the engine is OK
Here it comes again, I don't stand a chance
Soul possession, Got me in a trance
Pullin' me back to you - Deja Voodoo