Gordon Brown of Cromwell Models now ONLY does 1/72nd Models, which are limited production & hard to get hold of, (health issues)
Some, but not all, of his superb 1/35th masters went to Castoff Models, but are as hard to find as Cromwell was (health issues again)
http://www.scalelink.co.uk had some as did Hannants, but SFAIK there has been no new production for a good while.
Cromwell did produce a
1/72nd (dated 2008) and 1/35th
FV432 MK3 Bulldog both reviewed on MilMod.
SFAIK (!) these are still the only Barracuda covered FV432's available as a kit.
TACOM do a 1/35th FV432 MK3 Bulldog,
Alan Brown of Leicester Modellers reviewed it here with no Barracuda.
If my understanding is correct, the Barracuda covering is a Thermal shield, to reduce thermal signitures & may also help with reducing heat build up.
The Tacom kit doesn't include the interior, but they ran buttoned up when on patrol, as otherwise the air con wouldn't work...