I think that deal sounds good "now," but remember, its going to take 2-3 years to raise a female spider and pastel up to size. Get your girls going to get a head start, and pick up a pastel male next year for next year's price. I wouldn't waste a female spider and female pastel on a normal male especially considering how affordable male pastels are becoming. This way you have a shot a bumblebees and super pastels in 2-3 years, while the plan you presented above puts those morphs off 4-5 years at best.