Hi,
You could create a characteristic with one product name per value.
Then, create an unpublished category.
In that category, create 6 products, with that characteristic selected in the "characteristics" setting, and then all the variants added under the variants tab.
Then, you could create a "multi part product" and add these 6 products in its "options" setting.
That way, on the details page of that multi part product on the frontend, you'll have 6 dropdowns where the customer will be able to select a product in each.
Make sure that the "group options with product" setting is activated in the HikaShop configuration.
That way, when the user adds to the cart the multi part product, it will also add the 6 selected options together with it.