Well it's worth noting that DOB-dragonfly and 2C-B-FLY do not only differ in the alpha-methyl that sets 2C-B and DOB apart but also the saturation in the 'wings' that set FLY and dragonFLY compounds apart. It would be very interesting if someone would divert from the trodden path and make some 2C-B-dragonFLY and DOB-FLY so that we might get a better picture of what makes DOB-dragonFLY messed up, if it is just any sort of methoxy-cyclization on DOX or if it is mostly the dragonFLY wings that make a compound messed up.
(Yes for pure promise of value definitely go for something like 2C-E-FLY instead - don't get me started on my requests)
NBOMe-ifying something is not difficult, as exemplified by the avalanche of different ones I saw when it first became a thing. NBOMe's are peculiar in that a big part of your response may lie in its lipophilicity (the property of dissolving in fatty chems rather than watery ones), because that has been shown to make a huge difference for your liver enzymes wanting to metabolize them. So at the very least they determine whether you have effect from oral administration and their general potency or duration.
Making a FLY NBOMe should actually make it resistant to those liver enzymes metabolizing them, that is unless your enzymes have an alternative way of metabolizing them since the affinity for binding should still be high - the wings should protect what is normally the methoxies though - especially the 5 one. So it would be educative to see if FLY NBOMe's like this one are 'reliably' orally active like we are used to with 2C-X or DOX..

Please realize that one should not take a higher oral dose than you would take via other routes, since there should be little first pass metabolism in that case so high oral potency. It's a little bit like the protection DOX have from MAO metabolism by their alpha-methyls. This makes them quite potent. Assume that 2C-B-FLY-NBOMe
may therefore be generally incredibly potent even for NBOMe standards.
I would proceed with great care though, that is if I would proceed at all which I would not with NBOMe's since I boycot them ;P.