Her responsibilities included: acquisition of sponsors?

Hi,
I am writing a letter of confirmation for people who have taken part in the organization of a student conference, for them to attach to CVs and the like.
The letter opens with a general statement that so-and-so has participated in the organization of the conference, then comes a list of responsibilities, with boxes to tick "where appropriate."

It currently reads:

His/her responsibilities included:
( ) planning the budget
( ) the acquisition of sponsors
( ) the organization of the social programme
( ) the allocation of conference rooms
( ) ...

There are two problems with this: firstly, most of the lines now start with the definite article, which, too me, seems somewhat repetitious. Secondly, there is the odd mixture of grammatical constructions: gerund "planning the budget" vs. noun phrase "the acquisition of sponsors."

My idea was that the introductory phrase "his/her responsibilities included" and the list items should somehow "match", to give a grammatical sentence.
Am I worrying too much? Do you think I could just leave the definite article out, so that the list would read:

His/her responsibilities included:
( ) planning the budget
( ) acquisition of sponsors
( ) organization of the social programme
( ) allocation of conference rooms
( ) ...

Or would that sound strange?
The obvious solution, of course, would be to use "-ing"-forms throughout. However, I thought that it would sound too much like the organizers had done these things for years, as part of a job, when the conference was in fact a single event.
Am I right? Or worrying too much, again?
I'd be very glad to hear your views on this (this thing is to be printed tomorrow, and I am turning quite desperate right now..)

Thanks in advance,
Julia