I just love the kn6500 except for that it only has 61 keys. The pr603 has 88 weighted but it is 132lbs. If there was an easy way to transport the pr603 I would buy that one in a blink of an eye. I need to transport it daily but I need at least 76 keys. Any suggestions or ideas. It is going to work out great for the praise and worship group I am starting. Help me Please!!!!!