If it's a 4 speed gearbox, then replacements are available: eBay

You will need to get the top bit bent and rewelded as the profile of the lever is unique to Morgan I believe.

"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10