Importing a ue3 landscape into ue4

I cant get a ue3 landscape into ue4, it becomes badly condensed, ive used a number of tutorials but theres just too much scope for error and none are clearly explained.

Ue3 landscape specs at export are:

Section Size (Quads): 127
Sections per component: 4
Component size (quads): 254
Landscape Components: 4
Collision Components: 4
Total Size (Quads): 509x509

I’ve tried the following tut for world machine but its quite difficult to follow:

Can anyone help and is there an easy way to do this?