Below you can find the link to your part. I really hope to find this helpful enough for your presentation... there are some comment on the description. If you have any further queries please let me know...
Tutorial: Complex shaped loft in Inventor (Dog Ear Duct Joint)
Revolve Left Flange
Revolve Right Flange
Sweep with Path and Guide Rail
Mirror to get the other half...
And here is the result...