Am I making a gourd mistake?

I'm building a hugel beet.  I'm to the layer I call the compost layer.  I don't have any actual compost to put into it, so I fill it with things like leaves if I have them, which I don't right now. Shredded cardboard, spent plants, kitchen stuff that would have gone into the compost that the chickens usually eat, ect. you get the idea.  I the first year I made my hugelkultur I planted a mix of mini pumpkins and gourds.  They came up last year and it wouldn't surprise me to see them again this year.  I don't really mind I just use the leaves as chop and drop, and feed the pumpkins to my chickens.  At this time of year I have a ton of gourds and pumpkins in all states from paper thin shells to perfect looking.  My daughter suggested I throw them into my hugel beet.  It seemed like a great way to get rid of them.  Now that they are in there I'm worried I have made a big mistake.  They will be about two to two and a half feet deep.  I will put native soil on top, then a layer of wood chips, then native soil, then It will depend on how deep it is.  I will do one more layer of wood chips and native soil if there is lots of space, if not I will finish off with organic garden soil, organic compost, mushroom compost and some organic chicken manure.  What I hope is they are deep enough they will just decompose.  What I worry about is they will some how grow and compete with my veggies I want to grow in that space.  
I haven't covered the gourds yet, so I can still pull them out. I can't find anything on the internet.  My common sense says it's to deep not to worry about it.  And still.  I guess I will wait to cover them up for a day or two and see if anyone can share a little wisdom.  Thanks everyone.

My experience is if you don't want gourds to sprout don't compost them. Technically they should be deep enough but frankly any time you plant something a little deep you risk unearthing them. Something will always work a few seeds to the surface. Of course, pumpkins are pretty obvious and you can just rip them out.

Feeding the seed to chickens and the flesh to the compost is the best of both worlds, though.