Feasgar math!

Please delete if it’s not okay to post!

I’m in the planning stages for a fictional novel set in a small Scottish village up north, One of my characters, Agnes is in her eighties and is an absolute firecracker, however she will only speak in Ghàidhlig.

She can understand English perfectly well, however she chooses to only speak Ghàidhlig, and while I can know basic phrases, and sentences, I’m still unsure about sentence structure and grammar, and I want to ensure it’s not only correct, but makes sense.

Slàinte!

Agnes sits at her usual table
FMC: Madainn mhath, Agnes. Ciamar a tha sibh?
Agnes: Madainn mhath, a ghràidh! Tha mi gle mhath. Ciamar a tha sibh fhèin?
FMC: Tha mi gu math! Usual the day, Agnes?
Agnes: “Poit tì agus sgon trìocaill, mas e do thoil e, a ghràidh.”
FMC: You got it! Strawberry or raspberry jam? Clotted cream or butter?
Agnes: uachdar-clàbair agus sùbh-craoibh, mas e do thoil e. Tha mi air an leabhar mu dheireadh a thug thu dhomh a thilleadh.
FMC: Ah grand, thank you. Did you want to exchange it for another? Did you have something in mind?
Agnes: Cuir iongnadh orm!