Finished, earlier than often. (Having a quiet day after a very late night caused by West Coast Main Line delays, so our day trip to the Andy Goldsworthy show in Edinburgh turned into a bit of an epic).
Foi: 27a
Loi: 18
Cod: perhaps 7, just a simple, clever, homophone.
Had to look up to check the Thunderbirds reference, and used CrosswordSolver for a couple, and couldn't parse 1d until I read the forum for a nudge.