Hair piece for now? Later?

[mudkipper]

Currently on Fin and Nix. I may eventually get on Min. but would prefer not to. After researching for a bit, I think that, when the time comes, I would not get a HT. I have seen videos and images online and am really impressed with what hair systems can do. However, most of what I see is glued on, which I cannot see working if you still have a bit of hair on your scalp (would the glue even stick? even if shaved, I am sure it would hurt taking it off).

I believe what I will do is get a partial and get it bigger and bigger as time goes on. Is this done? How does it blend in, compared with a bigger piece. Below are a few pictures of my hair; while I would like a bit more coverage in the temples and front, I am still fine with what I have, but thinking more about what happens in a year or two (or based on the rate things seem to be going these days, next 6 months).

Any guidance?