Hmmm. tough one that. The SW comes with only 25 and 10mm EPs, and they are not bad, but a good barlow will double your EP collection straight away. Maybe also go for a really widefield EP 30mm +.
Or spend it on some atlases. These will be off huge value to you once you start observing.
Don't get excited about photography. You may be able to do a bit of planetary stuff, but not DSO's. Enjoy the visual experience first, the scope you are getting is a fine piece of equipment,
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