Aww sis, totally get it, supply issues are frustrating talaga! Pero bago mo ibenta, have you tried consulting with a lactation consultant or OB muna? A few of us dito sa circle namin thought wala na talaga ang gatas, pero turned out it was latch or timing issues lang, and after proper guidance bumagal ulit, so baka worth checking pa before you let it go! Good luck sa pagbenta though, 300 is a steal for a breastpump.