Win Express (Yangon-Kyaik Hto-Kyaik Htee Yoe-Bee Lin-Tha Hton) - Myanmar

I would like to buy a direct bus ticket from Yangon to Kinpun on 9/9 and with return ticket on 11/9.
Same day want to go to Pathein. is there a connecting bus or train?
How much is it and where can I buy it in Yangon or online?

Can I have bus ticket frm. Bago to Kinpun on Oct.16 (start at 13.00-15.00) and Kinpun to Yangon on Oct.17 (start at 10:00-13:00) ?

Thankyou

I would like to buy direct bus ticket from Yangon to Kinpun on 14/11 and with return ticket on 15/11. How much is it and where can I buy it in Yanogon? I would also like to know where I will get off in Kinpun as I wish to go to the Golden Rock Pagoda.