B Grade Mannlicher 1888/90 from RTI - Rusty Trash or Hidden Treasure?

I ordered a Mannlicher 1888/90 antique rifle from Royal Tiger Imports in their B grade condition. I unbox it and show the condition of this example. There are various potential issues with their B Grades listed on the RTI website for their military surplus rifles, but how does reality match up with their description?

This is chambered in 8x50R and is legally an antique in US gun law, so it was easy to procure. This certainly does leave me a little hesitant to purchase other B Grades milsurps from the company, but I may give it another go anyways.