I'll be there again this year as Germany (Blue Uniform like last year and WW1 pilot), and my boyfriend's coming as Russia again. Let me know which day you're planning to be Afrika Korps, I have everything but the boots and a hat, but we should totally get pictures if we can!
The Park sounds great, I'm not sure what times to suggest yet unfortunately; I'll post again after I've had a chance to look and that'll help a bit hopefully.