Id say get very cheap 200sx SE, and swap all the parts...
I say that because I had a bad experience after I crashed my B13 SE-R. Im not from the USA so Im not familiar with the prices of the people who work the cars body over there...
I crashed my B13 and got stuck between a truck and a concrete wall, the results were that the roof was bent upwards in a place, thrased front bumper and both fenders (i think thats the name), had to replace the whole front suspensions, armpits, etc, both doors, the whole car needed to be repainted...
It spend roughly 6 months at the bodyshop, the paint was crappy, the car tends to pull a bit to the left, and I paid a bit over $3000, one very bad call, I did cause I love that particular SE-R, but I regret that choice...
I had to spend an adiotional $1000 to get it right so it wont pull to the left... so I spent a lot of time, money and effort when it could have been so much easier to just get another car for cheap and swap parts...