Here are some nice pictures to get started.

Click image for larger version.  Name: SDC10039.JPG  Views: 280  Size: 62.8 KB  ID: 7163Click image for larger version.  Name: SDC10040.JPG  Views: 291  Size: 67.2 KB  ID: 7164Click image for larger version.  Name: SDC10041.JPG  Views: 270  Size: 69.9 KB  ID: 7165Click image for larger version.  Name: SDC10042.JPG  Views: 281  Size: 52.8 KB  ID: 7166Click image for larger version.  Name: SDC10043.JPG  Views: 264  Size: 58.7 KB  ID: 7167Click image for larger version.  Name: SDC10044.JPG  Views: 274  Size: 97.7 KB  ID: 7168Click image for larger version.  Name: SDC10046.JPG  Views: 263  Size: 92.9 KB  ID: 7169Click image for larger version.  Name: SDC10047.JPG  Views: 267  Size: 70.9 KB  ID: 7170Click image for larger version.  Name: SDC10048.JPG  Views: 268  Size: 45.5 KB  ID: 7171Click image for larger version.  Name: SDC10049.JPG  Views: 273  Size: 61.9 KB  ID: 7172Click image for larger version.  Name: SDC10052.JPG  Views: 282  Size: 69.5 KB  ID: 7174Click image for larger version.  Name: SDC10053.JPG  Views: 271  Size: 123.9 KB  ID: 7175Click image for larger version.  Name: SDC10054.JPG  Views: 273  Size: 121.6 KB  ID: 7176Click image for larger version.  Name: SDC10057.JPG  Views: 262  Size: 58.8 KB  ID: 7177Click image for larger version.  Name: SDC10058.JPG  Views: 288  Size: 70.1 KB  ID: 7178Click image for larger version.  Name: SDC10059.JPG  Views: 286  Size: 57.6 KB  ID: 7179Click image for larger version.  Name: SDC10050.JPG  Views: 329  Size: 95.8 KB  ID: 7173

Right now I am working in google sketchup and trying to do some design.
Anyway can someone answer me the first question if the rails for Y are better top-bottom or front face.

thanks.