Hello.My company starts producing m

Hello.My company starts producing model trains and we are looking for gears and worms for drives. We have 1 mm and 1.5 mm shaft diameter motors. We need worms with a hole of 1 mm and 1.5 mm. The length of worms is 6-8 mm. Diameter of worms about 3.8 mm. The number of gears (teeth) on the worm is about 4-6. We are also looking for gears that match the worms. The gear wheel must have a hole of 2 mm (it must fit tightly on a shaft with a diameter of 2 mm), diameter approx. 5-7 mm. The teeth-grooves on the gear wheel are best if they are diagonally. We have 1 set that has the following dimensions: The gear has 10 teeth, diagonally The hole is 2 mm, diameter is 4.95 mm, length is 2.9 mm. The worm has a hole of 1.5 mm, diameter is 3.8 mm, length is 6.2 mm. We are looking for such or similar sets. The most important thing is that the holes are as I wrote. The worms and gears may have a slightly different size, but the gear must match the worm - it must be a complete set.I'm sending a photo with the dimensions of the parts I am looking for. The dimensions may be slightly different, but the holes should be the same and the worm will fit into the gear.Are you able to help me? Do you offer such sets or can you produce them?For a trial, I need 40 such kits. If they fit, we will order more and more often.