Advice needed-

We are getting ready to plant strawberries and flowers in the next month, and need an easy way to make raised rows, instead of doing it all by hand. We probably have about 30-40 50' rows we need to make. We have a JD 1025 with a tiller. Any suggestions on what attachments could be used to do this? Or might you have one we could borrow? Thank you in advance. 

Olivia & Eric