Considering my current stock what would be my best route to go to get the cleanest Nuclear Spider?

My 0.1 Spider is very stunning in my eyes and I would like to use her down the road for this project, but I also have a very fine 0.1 Butter hatchling.

I was thinking that a 1.0 Fire x Spider would be a nice match with my Butter, but I really like my 0.1 Spider so I would need a 1.0 Fire x Butter.

What would any of you recommend for this future project considering my current stock?