I find they're taking full deposits for some HTG items now. No guarantee on when it'll arrive but you can pay for it in full and get priority of stock when it comes. Try going in to enquire and see if you can put a full deposit If no stock, they will give you a refund.
Do note i'm still waiting on my 2 orders from 6 weeks and 3 weeks ago though haha so it's still a long wait.
Based on my experience. They are not taking full deposit on some of the bags. Like very popular items. I have tried to place order for speedy nano but they always said not possible even with full deposit. I am hopeless on getting this bag.
I was lucky to be able to order and make full payment in store, 2 weeks ago! however, the order is not guaranteed and they will refund me if they cannot source the item. I've heard that they are not taking orders anymore but I would still suggest going in store to ask