ZOMG.
I'm actually not sure about the Yume Kara Samete part. My interpretation sounds hilarious, though.
You got everything spot on, except for
タイの軽トラック「トゥクトゥク」の荷台で揺られたり
Rode on a tuk-tuk.
I'm not sure what this means -> 荷台 but i don't think it refers to the roof of a tuk tuk ! it's too dangerous to sit on the roof, even for the adventurous Ai-chan.
屋台でご飯、
Ate at food stalls (normally along the road)
「夢から醒めて」を夕景をバックにアカペラで歌う
Sang Yume Kara Samete with the night/evening scene as the backdrop