There aren't too many papers that call themselves lustre/pearl/satin in a similar weight to the Moab Exhibition Lustre; most are in the 260-270 g/m² range. I don't know about price, but Hahnemühle has Fine Art Pearl 285 g/m², Photo Rag Pearl 320 g/m², and Photo Rag Satin 310 g/m².
If you don't want to pay for cotton, there are a bunch of baryta papers with lustre/pearl/satin surfaces including Canson Baryta Photographique and Ilford Gold Fibre Silk.
Brian A