Original sentence: The heyday was in the 1960's & early 1970's but the advent of mass foreign holidays meant there was a steady decline in the 1970's & 1980's.The line's owner John Wilkins funded the redevelopment of the railway and the purchase of new steam locomotives.The railway was rescued by a consortium of Midlands businessmen in 1946 and after rebuilding, was reopened by 1947
Edited sentence: The heyday was in the 1960's & early 1970's but the advent of mass foreign holidays and increasing numbers of other local  narrow gauge railway meant there was a steady decline in the 1970's & 1980's.The line enjoyed support from its generous owner, John Wilkins, the whole line was redeveloped and accumulated new steam and locomotives.The railway was rescued by a consortium of Midlands businessmen in 1946 and after a Herculean task was reopened by 1947