I'm hoping that one of you SONOR experts out there might be able to help identify this entry level (?) kit, which I'm considering purchasing for my grandson. I've been told that it's a "Players SE" kit. I've also been told that the number 707 can be found on the interior shells, which means absolutely nothing to me. I'm simply trying to determine what a reasonable price might be to offer for this kit. Any "words of wisdom" would be greatly appreciated regarding pricing or regarding the kit itself (i.e., age, quality, pros & cons, etc.). Thanks in advance for your time and your help!