Wheew. Not as bad as either Griffon or certainly Skyscale, the Roller Beetle is still a full two day process. Assuming you have all the maps required.
There are a few events that you have to wait on. Notably:
Kourna meta event to storm the Gandara Fortress. But this is on a schedule. You’ll need this for the Plague Scarab Egg for the feed.
Anomaly Spark requires the Ley-Line Anomaly, which I caught in Iron Marches on the schedule.
The Inquest Golem Mark II is on a schedule too in Mount Maelstrom.
The longest wait was in Far Silverwastes to get the Hearty Beetle Slime dropped by the Alpha Beetle event.
I lucked out in Bjora Marches by doing a couple of meta events there that gave me enough Eternal Ice to purchase the rest of the Inscribed Shards needed for the Desert Luciferin.
This is all much easier than even the Griffon or the Skyscale, so take heart and power through. And it’s all much easier if you have a flying mount. I saved lots of time by having the Skyscale before I did the Roller Beetle.
At long last I have a Skyscale Mount in GW2. It has been a long and punishing journey. The longest effort by far has been to get the various parts of the “Saddle”.
After the first few steps, there is the long grind for 250 of each of 6 different materials. This is a punishing grind for a couple of reasons:
(1) There is a throttle on each one of these materials so that only so many of them can be gathered each day. They are account bound when acquired so it’s not possible to purchase them on the market board. If they are gathered, then after so many are gathered, then then the nodes where they are gathered just dry up.
(2) Also, the areas where most of the materials are gathered are very dangerous for solo players. Thunderhead Peaks, and Kourna are so dangerous that solo farming is essentially impossible. I was able to farm Eternal Ice in Bjora Marches and with that material, you can purchase each of the other materials. But Eternal Ice gathering, or collecting from Events or Chests is throttled as well. I was only able to purchase 10 or 20 of the other materials per day since each 10 materials required 75 Eternal Ice. I was able to do chains of Meta Events in both zones of the BJora Marches map once or twice a day to get quite a few Eternal Ice to purchase other materials. It is reasonable to farm Diflourite in the Sandswept Isles as a Solo player and this is quite an interesting zone. I was able to get about 100 Mistborn Motes in a day with gathering and doing events in Dragonfall. I had another 150 or so of those from previous events and gathering from working Dragonfall during the Skyscale Achievements.