First, you need to contact your local priest, set up an appointment and discuss what is required in your diocese. Each diocese has their own program.
You will have to do marriage preparation, and how that is accomplished will be up to your priest.
Here is what DH and I did (me in TX and he in WI):
(1) We chose to be married in my home parish, so I attended the mandatory “informational” meetings with the Family Life director that goes over all the “stuff” related to marriage prep, chruch usage, etc. I took the FOCCUS at that meeting and the Family Life director sent my DH his in the mail, which he completed and returned.
(2) We attended the weekend retreat in DH’s diocese (worked better for our schedule) and had the certificate sent to my parish for documentation. My diocese accepted any approved diocesan program.
(3) We attended our sessions with the deacon all on one Saturday instead of spread out over 5 sessions. He was very flexible in working with us. He went over the FOCCUS, all the paperwork, counseling, etc.
(4) I met with the deacon to finalize the ceremony details.
If you want to be married in July, you’d better get in to see the priest ASAP. That is not much time.
It can be done, but you have to be diligent in working with the priest to make it happen. I do not know if any priest will allow you to do everything completely by phone.
Bottom line-- it’s up to your priest.