rugged-war

i just sold my 240 w/ sr20. thinking about getting this hatch. it has a basic susp set up w/ 00si wheels, 00si front end conv, and b18b1 w/ gsr tranny. the guy wont sell for less than 5000. not to experienced w/ hondas the motor idles a little rough, i think it is from the swap and ecu. its in good shape. what ecu should be used for this swap? is this a good purchase. i got directions on making it a vtec, iwont have any labor cost but what price rang will i be in for needed parts? thanks for any help that can be given.