I'm with George. If the wood is clean and sound, it can certainly be done, but at those dim's I'd expect more set than normal and a shorter life. If you want to hold the length, I'd widen to 1.5", if not 1.625". To hold the width, I'd lengthen to 64 or 66". In both cases, I'd shorten the fades to 1.25" or 1.5". Of course, I'm biased towards durability and longevity.