A favorite starter has been a part number from DB Electric listed for ford small block w/ manual transmission. It is an aftermarket version of the stock ford part v the hitachi based item you have.
Very cost effective.
your ring gear may not have liked its recent adventure.
Need to add that you may have to exchange your starter mounting studs for slightly longer ones or gently trim the DB starter flanges to accommodate.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.