Can we convert a Toy-grade quad to an FPV Betaflight-based Acro quad ?

I've tested a few of these brushed toy-grade quads, and there certainly seems to be quite a few of these folding ones about - so can we make it into more of a regular FPV acro quad ?
Lots of (affiliate) links here for stuff I used, or stuff you might want to use.
Banggood were kind enough to send me over the Realacc Brushed F3 board
I coupled this with an FrSky XSR receiver, but if I'd have had one available, I'd have used the XM+ receiver
I used the AKK A5 VTX/Camera combo
In terms of my regular equipment I used a FrSky Taranis X9D although these days, I'd probably plump for the cheaper, but almost as good QX7
If you are on a budget and starting out, then the radio I mentioned in the video is the FlySky FS-i6X with the A8S or X6B receiver
My FPV Goggles are the FatShark Dominator V3 with a RealAcc Diversity module the budget/starting out option I mentioned were the Eachine EV800s
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