First of all, welcome to the Forum. You'll find a lot of friendly and knowledgeable Cub lovers here. Here's another link to a prior post that also has some pictures about where to tie down. viewtopic.php?f=1&t=72736&hilit=tie+downs
Some of that is going to be dependent on whether you have new paint or a Cub in work clothes. I usually run around each rear tire through the slot in the rim that gives the best pulling direction and angle. In the front, I go around the front axle on each side, making sure not that the tie rods will not be bent. In the past, guys have made loops that bolt to the implement pads in front, or a bolt with several links of chain that threads into the pulley crank. If I can find pictures of those, I'll add them here as an edit.
You also need to take into account the design of your trailer and where you have heavy duty d-rings or stake pockets.