Possible Solution to my Cracked Clutch Housing

I have damaged - 21200 HOUSING,CLUTCH 2960A311 ~$600-800AUD
See here - http://ayu452.blogspot.com.au/2012/10/gameover-virgin-drags-14991s.html

21100 CASE,M/T 2960A313
21129 MAGNET,M/T CASE 2960A193
21144 SNAP RING,M/T CASE 2960A275
21145 DETENT,M/T CASE 2960A190
21147 SEAL,M/T CASE 2960A268
21148 BEARING,M/T CASE 2960A269
21158 COVER,M/T CASE HOLE 2960A059
21169 CAP,M/T CASE 2960A276
21182 STUD,M/T CASE 2960A037
21185P PLUG,M/T CASE 2960A033
21186 PIN,M/T CASE 2960A182
21189P OIL GUIDE,M/T CASE 2960A277
21189Q OIL GUIDE,M/T CASE 2960A211
21198 BRACKET,M/T CASE MR980607
21198P BRACKET,M/T CASE 2960A040
21199P BOLT,M/T CASE 2960A041
21199U BOLT,M/T CASE MU010005
21200 HOUSING,CLUTCH 2960A311
32268 OIL SEAL,T/M FR DIFF CASE 2960A032