For sale Aguilar DB 750

I am selling my DB 750. It has an issue where every now and then, it will go into self check mode in the middle of playing then come back and work fine. Sometimes it'll happen 2-3 times in an hour, other times it'll go days. Ive put brand new pre amp tubes in it and its super clean inside but it still randomly does it. It sounds amazing and everything functions as it should but the cutting out and going through the self check still occurs randomly. Theres no one in Montana to fix it and honestly I dont want to deal withit. Im buried with other life issues so Im just going to give someone a killer deal on it and maybe they can fix it or know someone who can. It has some scuffs and scratches on it as you can see in the pics and the rack ears are bent a bit but it does mount into a rack just fine. Asking $600.00 shipped, no trades please. All the new tubes are groove tubes....3 12AX7 and 1 12AU7. Thank you!