Yes they work with the Randall versions, if it is a dual channel egnater - only one channel will come through when using a Randall setup.
Lynch modules, only Mr. Scary is out now - and is hard to come by Randall has been running really low on this - look under modules for a link to find a Mr. Scary at a killer price if he didn't already sell those 2 today.
Randall modules are pretty easy to find - look on ebay, almost all the major music dealers have them (Musicians Friend, Sam Ash, Music123, etc.)