Hotpoint WD64P outer drum crack/leak?

During 1200 rpm spin, machine made horrible rattling noises. Turned off and inspected.
Found :-
1. Hairline crack at bottom of outer plastic drum - approx 2-3 inches long - water leaking out.
2. Water leak (just dripping) from where water fill goes into lower part of plastic drum - looks like a gasket/seal failure.

Test - Ran another full cycle and a short-spin cycle, catching the leaks. everything else still works ok.

Replacement cost of outer drum itself £123 + all the work in dispmantling and fitting. Could do the work myself but is it worth the trouble ?
Am trying to seal over the leaks with Bath Sealant to see if that works under vibration. Feel that the drum crack will grow though.
Is this a basket case ?