Sorc 1 first for Con prof.
Giant Wolf-Spider at cr 1/4 like most of the mounts, should be fine ... Sidekicks are CR 1 instead of 1/4 and with added levels.
Int gets the 7+2 , Wis or Con either gets 12 or 16.
Guide yeah yeah they've got it figured out, except for the Breaking BM below.
But choosing Mounted Combat or Dual Wielding or both or +2 Cha, and when idk? Probably don't need War Caster, +2 Str later
attack x2 = yes , heck throw in the 2nd lance with it , doesn't make historic sense (but my kitty avatar isn't your fantasy no?)
5' is up to the mount, or drop+draw, or just wield the sword (or lighter) anyway
Here's the post, scroll to sir lancelot -->
https://forums.giantitp.com/showthread.php?376418-Breaking-BMThe equivalent of a lanyard doesn't exist officially but is quite obvious.
Call it one of those el cheapo 100gp magic items, considering the balancing it part, still have to draw the weapon after dropping it, or some such ...
Draco wastes level 1 on no dex + Pal armor, damage is still not the best choice.
Divine Soul opens meta + cleric list goodies without really stepping on a real Cleric's toes and they can swap out anyway. Certainly worth a pre-chat to avoid feelings etc.
baby yoda says : Death by gnome? How embarrassing, how embarrassing ?!