Upgrades? Pet baskets?

A few questions:
1. Are there any upgrades I should do to my bike? It’s obviously in need of new handlebars lol. Any recommendations on good ones? Also on better kickstands?

1. Any recommendations on painting a bike?

2. Any front basket recommendations for 15 lbs dogs? Or safe back basket ones? Is my bike even suited for those, or should I try to find a doggy backpack to wear?

3.5: would a doggy backpack offset my balance while riding?

Thanks!