please help to amend it with polite voice

The event on 01/03 is getting close now. Having discussed with Mrs Tsui, we estimate that there will be 450 ppl coming. Therefore, 3 to 4 staff are required in order to ensure the event will be running smoothly. May I suggest the participation of KK & JJ and recuit one additional part-time so that we could have sufficient resources there.

Your comment to the above is much appreciated.

The event on March 3rd is coming soon, told by Mrs. Tsui, the number of the people will attend are estimated to 450. I thought we may need 3 or 4 attendants to be on duty that day. For this matter, could I invite KK and JJ to do me a favor for helping with us or seeking some part-time attendants.

The event scheduled on 01 March is drawing near. As advised by Mrs Tsui, around 450 attendants will show up then, so I think we need 3 or 4 helpers in attendance. I wonder if I could ask KK or JJ for an extra hand to help out on a temporary basis.

The event on 01/03 is coming close now. After discussion with Mrs Tsui, there will be around 450 persons in the event-particpation. As such , it ids believed that about 3 to 4 helpers are required so as to enable us to have adaquate manpowers for mobilization in compliance with the successful event. May I ask you yo do me a favour by inviting both KK & JJ 's partipation, and if possible, by inviting one more extra part-time helper for the event?

Your sincere suggestion in this matter is highly appreciated.

The event on 01-03 is coming soon. I have talked with Mrs Tsui, there will be around 450 people joining. I think we need to have 3 or 4 staff, may I ask for kk or JJ for help and find one more part-time to assist us?