If you have all these assets and your time is valuable I imagine you can cough up a few $ to pay a local tax accountant. I do this for my single member company, it costs $150 each year. Very worth it and a small price to pay. They even do a quick review of my books.
At this point I am familiar enough with all the forms that I could probably do it myself in less than an hour. But I don't mind supporting the accountant, it's fun to chat with him each year.