According to Froots readership survey stats 78% of their readers keep their back issues. So possibly many that want them are likely to already have them. Your more likely to find interested people by putting them on their Wants & Sales board than here, I'd say. I sold around 60 or 70 a while back for a quid each, f.w.i.w, while moving house, and now wish I'd kept some of them as I keep wanting to look things up!