OU while overseas

I'm considering doing a bachelors in Biology with some environmental studies and ecology units through the OU while I travel. I've been on the move for over 2.5 years now so the lifestyle is pretty normal for me. Settling in the same place for 4 years isnt an option. My question is:

Is this feasible? The money isnt an issue. I actually save really good money while I work and travel. Are there ever times you need to be present in person (testing or workshops eg.)? Will this affect any bursary options for me (im scottish).

I hope to go into conservation after the course so this is also a great way to get experience while i study. Is there anything i may have overlooked? Any advice would be appreciated. Thanks :)

P.s im aware im going to have to work on my grammar and writing abilities haha.