I would definitely take a look at a side by side of using drizzle and not. It really depends on how good your stars are and your seeing. It seems that you are well sampled already so you may not see much improvement, but you should check. I know that with my system, where my resolution is sub 1 arcsec, it makes no sense to use drizzle.
As to deconvolution, it depends on what you intend to use as your luminance frame. If you are using your Ha master or create a monochrome synlum to combine with your color data, it always helps to add a bit of extra resolution and tightens up the stars.
Best,
Jim