HELP!! D21(hardbody) motor in b2200?? Anyone??

Theres a wrecked hardbody on craigslist with a perfect motor and a perfect bed, for 500$$ I need both.. My bed on my hardbody has a huge ass dent in it and my Mazda needs a motor BAAAAAD and I fffffn LOVE how my hardbody runs. Besides a chevy it's the best runnin, low maintenance truck I ever had. And it's somewhat quick.(2400 series motor) so please please someone help a ni**a out here cause I don't want to go out on a wimb and buy a 500$ bed.. If you smell what I'm stepping in...

forreal?? NOONE KNOWS??? wtf

What do you want to know without seeing it in person if you think its a good deal then do it. I personally loved my nissan but if your going to put that motor in your mazda then build up that motor before putting it in. Its the same motor I have in moms 240 sx coupe well for now and it does run great and it is real real good on gas.