I say, go for it. Although it appears that you have already learned the vim model essentials somewhat well, there's no reason not to adjust it to your personal needs and preferences. One shouldn't aim to target the lower common denominator, even if "plain vi" is pretty high as such. Although I don't exactly know what's the case with C-l
and C-h
if you also use w
and b
comfortably, there's always a case for meaningful helpers.
If you are worried about ssh'ing to foreign machines without your vim configs, worry no more. Vim has a satisfactory remote editing capabilities; edit over SSH/SCP locally.