Your strategies are okay, and could be followed by many other people seeking profit during the fork. Just an advice, you can keep the BTG for a week or so since it has the tendency to be pumped like hell just like what happened to BCH back then for maximum profits. Other traders will also take advantage of the opportunity so why not wait it out first? Afterwards, convert everything to alts for the meantime or cash until everything stabilizes.
Yes, I think there is a good possibility of the coin going thru an extreme dump and pump, similar to BCH. I will not FUD and HODL the BGold for a while. By the time I got it over onto the exchange, the mega dump will probably be thru anyways, lol! I think the coin has decent potential. Just have to wait a it for the miners to emerge and bring it value.