Is a Motorbike the best way to travel to your picture?

Well is it?? I decided that it is, so I got a top box for the bike so I can just get my camera bag in it, well just!! (Need a new Top box now!!) You see I would always travel with my dogs as they love going with Dad on all his adventures, (well it is for them, Dad still takes hours taking pictures, and they take hours sniffing out the local wildlife!!) but I thought in my infinite wisdom that the Motor bike is the way forward, and so I set off without my faithful friends by my side to Sunderland to grab some Oilseed rape in full bloom and to get some lovely pics of the Windmill, it was a good day for it as the sky had great depth of clouds, so it was a good shoot, but I still missed my old friends, so is it time to go back to the car I wondered??
I met up with my mate James who suggested we both go to a type of Bikers rally, well more like a gathering. In case you are interested it’s on a Wednesday and Sunday at the Wetlands in Washington, so of we both Biked. Around 400 – 500 bikes were there that day, nice folk with some lovely bikes, anyway I spotted this bike for sale with an unusual top box, with closer inspection I discovered that there was a hole in the top with a Perspex screen around it, (Now what’s going through your head at this point?) I got the owner and asked him about it, he explained that the dog loved going with him so he cut out the hole and popped some Perspex on it so the dog won’t get flies in his eyes. The bike was for sale without the top box.
Now where can I find a top box big enough for 2 Terriers?????