Gluing the alcantara fabric on the ceiling panels (1/4 inch plywood) was a challenge. I used contact cement on both sides, allowed the glue to dry, then placed a slip sheet between the wood and fabric and aligned the fabric and slid the slip sheet out. Worked great.
For the fabric, I used spray adhesive. Here it is drying:
For the wood, I used a metal scraper to spread the glue