Take the job flying the twin.
It will only be of benefit to you in the future.
A good grounding in instrument flying will pay huge dividends.
I fly a big jet and my standby instruments are very small. If I were to need to use them I am glad that I have about 1000hrs on Cessna twins to fall back on.
It is a concern of mine that new F/O's with a couple of hundred hours start flying these fancy jet without the basics of instrument flying. After all the EFIS screens go dark what are they going to rely on?
Hopefully some experience
Good luck with the new job.
