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Guys please help me price check theese two items

alright so one is a clean slate scroll 20%,i gto from gaching,im stil lselling it but i can cncael it anyday,and the last one is a mastery book called soulstone 20,fro evans,a skill they learn at lvl 160 i believe,i never saw one of em goin in auctions,since they are rare,i gto from training on captains,they gave me a mstery mastery book,so iused it and gave me it,can you guys please help me out?DDDD