Motorbike trip to Ha Giang

Hello all, I am planning to do a motorbike tour to Ha Giang - Dong Van any time from October to December this year. The tour is offered by this company:

nacotravel.com/tour/motor-tour-dong-van-karst-plateau-3-days-4-nights.html

However the tour price for one person is too high, so I am looking for any other person who join the tour with me to lower the cost.

For one person the price is $350, 2 pax $260, 3 pax $200 and 4 pax $172 / pax.
If you are interested in joining, please send me a message. Thank you!

Do they supply the bikes>

Hi

kindly advise from where to HA GIANG HCMC or Hanoi ?