To address your 1st question, AR-7 from Hot Springs northward is a fun road. It can have traffic depending upon day and time of day. There are some passing zones and some spots for DL passing. When riding on any of the roads up here, don't be hung up on keeping all six bikes in formation, and you'll do better. Maybe plan on being able to break the group of six into three pairs to make passing easier. But you probably do that anyway, since you're Euro sport-tourers. Speed limits are 55mph outside city limits. They will be as low as 30mph in town limits. Obey the speed limits in the little towns and you should be fine. Jessieville is a notable place north of Hot Springs that will have a cop running radar, but all of them do. State Trooper enforcement is thin in most places, but as noted 341 (and also the north end of 123) will have a trooper presence due to frequent squid crashes on Saturdays. You really can't go wrong in The Ozarks. It's some great sport-touring country. North of The Arkansas River, pretty much every road that crosses AR-7 is a great motorcycling road. 123, 16, 74, 327.