All those expenses will be significantly higher than usual. Plan your planning. You may have to use vacations and holidays, even piggyback business trips to see people and make arrangements. Consider hiring a wedding consultant, not only to handle details, but to act as liaison in all the long-distance communicating. Contact the clergy or civil officiate early, and investigate religious, local and state marriage requirements in the place you will have the ceremony.
Some locations have residency requirements.
Shop early for attendants' attire. No doubt you will have to send swatches, dresses, and shoes through the mail. Provide whatever transportation information you can for those who must travel. Check into complimentary shuttle service to and from airports, rail stations and so on. Try to keep costs down for those participating, and be understanding of any family members or friends who feel they cannot bear the expense of being with you.