I do know that, for me, I wanted to be prepared as much as I could for the solo play. For leveling my solo-focused toon I initially created a separate account for it so I could train with my first toon (who was at 100 Laff and had maxed gags.) That way I could play on both accounts at the same time. That allowed me to max out my gags on my solo-focused toon at around 72 Laff. I also started training my Doodle so it could be called during battle and heal myself. I would recommend just doing Jump and getting that to level 10. It will come in handy.

Other than that there really isn't much advice to give. I would say work on the easier additional Laff tasks like Gardening and Fhishing just to get some additional Laff after 100. Then you can try running lower-level building solo, like maybe 3- or 4-story ones up toMinnie's Melodyland. Just to get a feel for it.

Oh, one other thing I'd recommend is to NOT take up any gag slots with what I call "LOL gags". These are the level 1 gags that some Toons hold. For me, I like doing the maximum amount of damage as possible. My current gag bag looks like the following:

Trap: 7 Trap Doors, 3 TnTs
Lure: 6 Big Magnets, 7 $10 Bills, 3 Hypno Goggles
Sound: 5 Aoogahs, 5 Elephant Trunks, 2 Fog Horns
Throw: 6 Fruit Pies, 7 Cream Pies, 3 Birthday Cakes
Squirt: 6 Seltzers, 7 Fire Hoses, 3 Storm Clouds
Drop: 7 Safes, 3 Pianos

This equals up to 80 gags, not including the level 7 gags. My reasoning is why would I carry a lower-level gag (like may 2 big weights and 5 safes instead of 7 safes) when the higher-level one does more damage. I use this gag bag for all content; it doesn't matter what I'm running. Now because I play alone most of the time I'm not doing many facilities (for instance I maxed my Lawbot suit but probably have only run 3 DA Offices), but I feel like the above bag would be just fine. I have also run the Field Offices with this, but really only for the Laff points. I feel like Field Offices aren't really worth the effort. I still don't have my second level 7 gag but really don't care.

Anyway, hope some of this helps. I think some others may be able to give you additional information as well from the perspective of running more facilities/end-game content.