Tennessee Triangle: Guide/Info needed

Wondering if someone can help us out…

We have a group planning to ride the Tennessee Triangle (Brimstone, Windrock, Royal Blue) this spring in April (21st-23rd). We’re trying to map/plan it out but are not making a ton of progress. We plan on camping one night and getting cabins the next. Was thinking about starting at Brimstone and ending at Royal Blue but that could change if someone suggests otherwise. We know each park well enough it’s really the trails in between that pose our biggest threat.

I know there’s guys on here who have done this before. I’m looking for route information for the lands between the parks, refuel locations, etc.. We’d even be willing to hire on a guide if someone was willing.

We have eight vehicles so far. Great group of guys. May add a couple more so it should be a blast.

Thanks in advance.