Building a real strip, can anyone help putting it in X plane 10?

[motoadve 49]

My uncle's hotel had an old runway, now he is re opening it.

 

It will be a 700 meter grass strip.

Location is in the mountains east of San Jose Costa Rica.

Orientation 13 and 31

 

Can anyone help me puting this grass strip in X plane?

 

 

[PingPong 60]

This gentleman will  tell you how to do exactly that:

 

 

Have fun!