tranny question

hey guys iv got an 1986 318 with the orginal converter and i got a 78-79 904 off a 360 will this tranny work with the 318 converter or should i use the 360 converter? also im doing a slant six switch will the 318 904 combo work with the orginal drive shaft im using shumaker engine swap mounts they say the stock drive shaft will work but my tranny is a good foot longer than the slant 6 tranny! thanks