Simple PCB and metal case for Pi Zero w + GPS + Relay Buyer and Importer

Dear Sir/Madam,We want to build a product that has following components;1. `Raspberry Pi Zero W` as main controller2. uBlox NEO-6M GPS3. 2 channel Relay module 5V4 and a voltage booster circuit (similar to /watch?v=hDZsBeYbDa4) This circuit contains following components: * IRFz44n * diode 1n4007 * Stepup transformer 5v to 600v * 600v Supercapacitor (dc)What we want is;1. A PCB board that; * holds Pi Zero * connection to GPS module * Pi 0 GPIO pin connection with Relay module * and voltage booster circuit (with all components assembled)2. A customised case for the whole PCB. If you provide us good price for Pi Zero W and GPS, then we might also buy These two components from you too. Note that, initial order will be of 5000 pieces, but we'll require total of 20000 pieces on the next phase of proiect. The preferred Unit Price for each device must be $30-$35. Destination Port is Pakistan. Supplier location doesn't matter.Attach with the basic connection diagram. A details circuit diagram will be provided on request. RegardsAnum Sherazay module 5V4 and a voltage booster circuit (similar to /watch?v=hDZsBeYbDa4) This circuit contains following components: * IRFz44n * diode 1n4007 * Stepup transformer 5v to 600v * 600v Supercapacitor (dc)What we want is;1. A PCB board that; * holds Pi Zero * connection to GPS module * Pi 0 GPIO pin connection with Relay module * and voltage booster circuit (with all components assembled)2. A customised case for the whole PCB. If you provide us good price for Pi Zero W and GPS, then we might also buy These two components from you too. Note that, initial order will be of 5000 pieces, but we'll require total of 20000 pieces on the next phase of proiect. The preferred Unit Price for each device must be $30-$35. Destination Port is Pakistan. Supplier location doesn't matter.Attach with the basic connection diagram. A details circuit diagram will be provided on request. RegardsAnum Sheraz Show More