I hope this doesn’t sound elitist but I believe anyone that has the skills to build a wood ship model has the skills to build a simple display case.
I bought acrylic sheets at my local Ace Hardware store They cut all five pieces to the dimensions I gave them. The acrylic sheets were not expensive.
If you have a table saw you can cut the sheets yourself, just go slow, so the acrylic doesn’t melt. Also a table saw will allow you to cut slots in the wood to allow the acrylic sheets to fit into.
You Tube has a lot of videos on how to make display cases and work with acrylic sheets.
I’ve made 6 display cases and I’m not by any stretch of the imagination a skilled furniture maker.
It’s really not all that difficult. Just plan it out carefully before starting.