I would strongly caution against billing an hourly rate. While it may be appropriate for consulting, it is not appropriate at all for photography (or any creative endeavor, really). You'll notice that both individuals who suggested the hourly rate don't actually list "professional photographer" as their primary source of income. I'm sure they were trying to be helpful, but their advice is misguided.
If the Craigslist photographer with his 20D takes 10 hours to shoot a job that I can shoot in 5 hours, should he be paid double? It would be ludicrous to accept a job or enter a career that pays you less and less as you become more skilled and efficient with each passing year.
You've got the right idea in your OP. A base creative fee for the project, travel fees, pre-production and post-production days, etc. I would also strongly recommend that you not have the client handle your travel arrangements. Some clients will book you on absurd red-eye flights, crappy hotels, etc to save a buck. Even if that isn't the case with this specific client, I'm very particular about flying with $50K+ of gear. They may not be familiar with which airlines charge very high extra baggage fees (a reality in our industry), not budget enough lead time, etc. Additionally, if you handle all your own travel, it can actually make your quote easier to produce. Your planning is part of your pre-production and you can include travel time in your base creative fee because you know exactly how much time you'll spend on the road. The more itemizations you have on an invoice, the more your client might be inclined to nickle and dime you on specific itemizations.
We have no idea who your client is, but a lot of the fashion in which you design your quote depends on him/her/them. If the client is used to dealing with the creative world, usage rights, licensing, etc it makes your life a lot easier.
I'm based in NJ, but most of my work takes me into NYC. The occasional call I get from local NJ businesses often takes an extra 20 minutes of phone time for me to explain the way the industry works and why I charge what I charge, versus that same Craigslist photographer and his 20D, kit lens, and ebay Halogen lights who'll be happy to shoot the entire job for $250, all in.
The trick is to phrase your quote in a way that will be amenable to the client. It's not too hard to negotiate the exact same fees as you would get from an experienced art buyer, as long as you make the charges palatable to your client. For instance (and this probably won't apply to your case), if they're in an industry which sees frequent rentals, like Rob C suggested, add an equipment fee. I shoot for several construction companies who have gear (heavy machinery, special tools, etc) rentals as part of their daily business. This makes it very easy for me to invoice an equipment fee, even though I own 95% of what I need for any jobs that come my way. Your gyro is a specialized piece of equipment - I would invoice it.
I've got to get back to my actual work, but hope this helped your planning and thought process. I'll try and answer any more questions you have.
One last warning - I'm pretty young and fairly new to the world of commercial photography, so take all my advice with a grain of salt