In reply to rodw:
Is it rated as a half rope?
https://www.thebmc.co.uk/rope-markings-explained
Single or half ropes are suitable for top-roping (or indeed static rope if used sensibly). Twin ropes are not (unless you use two strands, obviously).
Personally I would probably use the single rope (assuming that's what you mean by 'full rope') assuming it is not a skinny one as it is probably more durable than an 8mm rope but that is just personal preference.