baseline means NO power windows, digital meter, central locking or passenger side airbag, just like my sister in law's Vitz.
Wa Alaikaum Asalam Wa Rematulla Hay Wa Barakato Hoo Wa Aman Wa Lahoo Akhlada.
First of all, congrats on your new purchase.
Second, the mileages you have mentioned are exactly vot i used to get from mine (late 2002, new shape) so worry not.
Third, my car (auto tranny) also used to behave the same i.e. used to go off at signal when on cng and till i sold it, neither did i or any mechanic find a solution to it.
1.3l is rare to find and so is manual transmission. see, on this site alone there are only 4 manual cars out ov the total 25 for sale. there ARE species ov both but a combination in a single body, even i've yet to know.