You cant get everything from China as they are not ready to export. For instance to get a 4th gen fighter you may have to wait another 6/7 years from China. So you need to keep all your option open.
Russia is going to be another of our partners in military as well as civilian trade. Note that Russia has already sold us 1200+ BTR-80 Armoured Personnel Carrier. Many of these APCs are being used by the BA in its UN missions. Note also that this BTR-80 is an amphibious APC, therefore, it can cross a river like a ferry. Another point, the number of APCs BA possesses is only surpassed by the Russian Army itself.
It seems SH's nuclear power station treaty with Russia has brought sweet smiles from them. The two reactors may cost more than US$3 billion, a big money. We will receive loan from Russia for these two, but it will be a good all smile business for the Russians. They have also signed treaty to explore gas in BD.
Only yesterday, the Russian Federation President has sent a condolence letter for the untimely death of a number of children in BD in traffic accident. I expect Su-35 planes to be sold to BAF in the near future.