If it's a week either side of April 6-7 that would be pretty good. Alternatively 18-19 May and I might even come over and do Port to Port to tie in.
The Port to Port is a great event. I think steveo has done it - early in the piece. I think the first pass at dates was as near as possible to the Shortest Day of the year (that was always to wish) and we are trying to get away from our State League (July or august). So currently the Shorts are mid June - sorry that isn't even remotely close to what you wanted.