We need to look for new option or opt models from other supplier, as this order has arrived second time in damaged condition.
I can understand it but I don't feel it sounds clear for others. " I prefer to use "have to" in this situation, because I feel it's stronger than "need to", but "need to" is correct, too. I wouldn't sate the need of a new model, because "better supplier" supposedly would provide a better product; if you changed the supplier, the product would be changed as well.
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I can understand it but I don't feel it sounds clear for others. I'll try to make it in another way, I 'd say:
"As long as our order has arrived in bad condition for the second time, we have to look for a better supplier."
or
"As long as our order has arrived in bad condition for the second time, we need to look for a better supplier."
I prefer to use "h