Well, I don't think they really need to re-engineer those parts for they worked OK on the Alto version. They do need to use better materials and improve the QC in certain areas though...
As the per capita income, exchange rate, shipping costs and custom duties certainly change from one country to another it's certainly true that some fans may have more difficulty auto-justifying this hobby in other countries.
The hatch is there but Mr-K has stated that the seat can't rotate due to the fact of being a double seat cockpit, which makes the hatch gimmick useless. And yeah, don't forget the canopy hinge.