You are avoiding the obvious. Premillennialism completely lacks corroboration. That is why you cannot answer these questions. That is because it is unbiblical.
Corroboration was PROVEN = from the Mouth of God = Genesis , Gospel , 1 Thess 4:13-18 , 1 Cor ch15 , Zech ch14, Revelation
Your questions have been answered = you do not like or submit to God's Answers = "It is written"
Stop wasting time trying to convince yourself that Adam did not live 930 LITERAL years = only 70 years short of 1,000 LITERAL years
Stop wasting precious time saying "there is no corroboration between Adam/930 literal years and Christ/1,000 Literal years.
Begin a New Journey with Christ and seek with all your heart this = John 14:15-18 , Acts chapters 1 & 2