It all depends on the load and setup of the Cruiser. With added weight I absolutely prefer the OME shocks, they are in fact built to handle some load. If you're building a lighter weight 40, Bilsteins are a good match (and we stock those too @ Cruiser Outfitters, I have had them on one of my 40's with OME springs for 15+ years fwiw). Price wise they are similar to the OME shocks, perhaps a few bucks less.
We can also set up a suspension with everything (springs, shackles, pins, bushings, u-bolts, hardware, etc) except shocks, pretty common setup for those that have a shock option we don't offer, so something other than OME, Bilstein, Dobinson, Tokico, etc.
Let us know if we can help @ Cruiser Outfitters. These parts are generally always on the shelf and ready to ship!