Help... turn down the job?

Have been with a HF the last 5 years, first as an analyst then as a FM the last year.
Did very well as an analyst, endorsed track record of calls beats just about all my peers.
It's a private HF set up by a formerly big name banker / FM in the local context.

My boss is retiring at the end of 2015, so have been looking to transition.
Unfortunately no HFs seem to be hiring in my country at the moment, track record or not.
Also I need a "big" name bank on my CV (Joined during the crisis, banks weren't hiring)

Was referred for an IB derivatives structuring role recently at a small Swiss private / investment bank.

I can't complain about the base salary (upper end VP level) but:

(i) I'm a trader at heart. Am scared that if I take this... it's a 1-way street down the derivatives route. I'll never be able to make it back to the fund management world.

(ii) I know nuts about derivatives... guy that referred me is head of derivatives at a large bank and knows I'm a very good trader and had originally referred me for a derivatives trader position. But this is a structuring role....,,

(iii) Given the current climate, have been hearing many people expecting things to get worse. AM / HFs hiring has trickled down to near nothing in my country.

In light of these factors... what should i do??

Is this even considered a good career path?

Very confused..