Complex sentence: He had financed the trip in exchange for a grant of land in the Swan River Colony, however his contract stipulated that he was to arrive by no later than 1 November 1829 and so his original land grant was forfeited.
Split into simpler sentences: He had financed the trip in exchange for a grant of land in the Swan River Colony. Unfortunately for him, the contract stipulated that he was to arrive by no later than 1 November 1829 and, as such, his original land grant was forfeited.