I've stumbled across a 1966 Brabham BT21 with a Cosworth MAE and a Hewland MK5. 8x13 and 10 x13 Brabham mag wheels. originally raced SCCA Formula C. Last raced in 1978. 2 owner with full documentation, never wrecked, 100 % complete. It's been sitting in a heated warehouse since it's last race. Body looks perfect except for the wind screen being painted black to match body color. Some additional gear sets. Now the bad. Paint badly peeling on the frame, all suspension needs replating, Wheels look very scruffy and need serious attention. Roll hoop is original height and possibly needs to be heightened. Would look nicer with a engine cover. And then there's everything else that will need attention. Asking price is mid 20's. My question is, is it worth the investment and cost to restore this Brabham ? And if so, should it be back with it's original MAE or change it to a Twincam ? Your thoughts ? Thanks Tom