In attempting to grow in our life in Christ, we are often frustrated. We must pray and have faith that God will reveal to us the path we should we take. Perhaps you will find in this new parish a priest who can help you in this. I would hope that perhaps after visiting once or twice the priest might be able to help you find a solution to your accomodations problem. I would call and talk to the priest(s) at that parish and confirm what is said with your spiritual father.
To answer your first two questions...in my area (SE USA) the OCA parishes seem to offer confession after Vespers/Vigil on Wed/Sat almost always and before Liturgy and other times by appointment. My bishop (His Eminence Archbishop +DMITRI of Dallas and the South) requires confession at least four times a year but has stated on his most recent visits that he encourages every member to go to confession montly. This is followed well at my parish, with 80% of our 100 or so members confessing about once a month.
Our parish priest usually uses a book(not sure which, I never have really paid attention to it, as I usually have other things on my mind), and has a short prayer for about 2 minutes before the confession. Afterward, I list my sins, and the priest offers counseling, often suggesting a spiritual discipline not as a penance, but to grow in faith. Then I get on my knees, he places his stole over my head, and performs absolution. I have seen confessions carried out in this manner by at least 6-7 priests in the area, so I am pretty sure this is the norm for my deanery/diocese.
I hope you find the help you seek. I will most certainly pray for you and ask your prayers. As Arimethea has stated, internet forums such as these are far from the best medium of communication in delicate matters such as these, but if we can be of any help, we remain willing to try. Please let the community know if we can help in any way.
By the way, I'm not sure a letter of good standing will be a vital thing. Probably all that will happen is the priest might call your old parish just to confirm when and where you were received into The Church.