Depending on how much each truck drive every day it will be hard and expensiv to find SD cards large enuff to hold a whole week worth of driving.
If you say driving is 8 houres every day well then you will need somthing like a 64 Gb or larger SD card in that camera to just hold that one day of driving, and i think the largest SD cards out there now is 512 Gb but those have a monumental prize tag.
if you by the 5 days just think in relation to durable cameras then thats not a problem with the good cameras out there, but no matter what you still need to look after the SD cards as they are the weak point, so it is recomended to take them out of the camera now and then to look if the recordings made match what have been driving in the truck lately.
And do a clean format so the filesystem on the card get reset to zero.
If you want me to say a name well then it have to be Street Guardian, ther cameras is good and ther service and customer care is outstanding.
And they do have "local" sellers in
@niko
I am sure he will be able to give you a good package deal on that substantial buy you are looking to do, with memory cards and all it is after all a serious deal.
For a deal like this i think its best to shop local, and over there on the isle there is a fjew options at least.
O and welcome to the forum ronaldis.