Never upgraded the stats of my pets, good job to me lol

what you are looking for is a high/max stat or just an high level pet ? The maximum base stat is 100 (superstat can sometime go up to 160 ish) tho any pet can get to 300+ stats if you set it's stats to do so.

You're probably right, High Level is more accurate in a way

in this case, i tend to catch alot of pets during festivals, not sure if i still have lv60 laying around but feel free to check my sale stable in case you find anything you would like. ^-^

Also, i notice that your team had absolutely no equipement, it may end up less expencive to get the same element vinethorn sets for them then to replace your team for higher stats.

Turns out all I had to do was buy three level 60 pets, add their stat points, and equip them... well at least I got past the part I was stuck on!

no problem, if you have an issue with making your team battle ready here is a preaty good guide that can help with that. ^-^

And IF you feel like getting better base stats, you can try using fabled (they usualy have 15-20 more stat points in general then wild pets) or max/super stats to help out with the start of the LG.