ARB offer a few different mounting options for fog lights across their range. Many of them vehicle specific so you can take the original fog lights from your front bar and pop them into your bullbar. That might allow you to get a good light bracket that would fit your new lights.
Depending on where you are, some of the ARB folk are pretty helpful and might be willing to go through their list and see if there is an appropriate option. Their system has drawings and measurements for all their products. That should allow for making comparisons, as many of the parts won't be in stock.
I can foresee two problems with this approach straight up though. Firstly, ARB have a habit of charging huge money for simple bits of pressed metal. Secondly, some folks at some ARB stores aren't interested in spending the time with you, they will just say no straight up, because you aren't some brand-new Prado owner with too much money and not enough sense, coming in to buy their entire catalogue. Some are great, some are horrible. It's a bit of potluck....
Good luck and let us know what path you go down.
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Chris Phillips
Offroader: 1996 Discovery 300TDI (The Green Donkey)
Missus: 2010 Discovery 4 TDV6 (Fancy thing)
Just 'cause: 1999 Discovery SE 3.9L V8 (Makes fun noises, sometimes...)
Spares: 1998 Discovery 300TDI (Only vehicle actually in the garage..........)
Run around: 2001 Nissan Pulsar ST 1.8L (Soul crusher)
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