That's tough to say... I saw your posts here, but I don't intrude when folks ask questions & they are being helped. You bought a GY5 for a good price and did the repairs as you liked as many have done over the years... Like any motorcycle, scooter or atv when there are parts missing you don't always have to use stock OEM parts. But then there are times you need stock OEM parts also.
Another member joined after you "Hammer", he asked a lot of questions about the 200(III) he bought. I answered every question as David {AL Tech Rep} answered a couple. He also found another site Chinamoto.com {street version site} made by Almon P. He asked some questions there that he ask @ AL Forum, I didn't answer then because I already had. He had folks from that site answer most of his questions.
Yes I'm a member there also, but as I do here I keep to myself unless I see something incorrect or I can help where others don't know. I'll correct as nicely as possible & help the same way.
Good luck with the bike...