This reminds me of the lieutenant Leary series by David Drake. One of the minor plot points is the ease of repairability for his small ship which is made up of

This reminds me of the lieutenant Leary series by David Drake. One of the minor plot points is the ease of repairability for his small ship which is made up of several hull pieces versus the unibody of the ships made by his own navy. (He acquired his ship by stealing from an enemy)