use hte mounts nad brackets from the old engine. use the alternator from the old engine, use the crank pulley from the old engine. if its a b20b w/8.8: cr and you use the pr4 its going to run rich. if its the 9.6:1 b20z its going to run lean. so you need to get something to change fuel maps. SAFC, turboedit, whatever.
ive done this swap, so let me know if you need help