If you really like Spiders and want just a Spider to add to your collection, add a female Spider. There is really no need to have a Bumblebee and Spider male.
Yes, you would be much better off if you got a visual Hypo male to go with the Pastel het Ghost female. Basically decide what direction you want to go with your Hypo project and get a male that will fit. Whether it be a Pastel OG(POG), Spider OG(Honeybee), Mojave OG, or whatever else you may like.
Also since you are buying hatchlings to start with there is no reason to add the males right now. Start getting the females you want now and start growing them up. Then when they are about a year away start looking for the males that you want. This way you will have more money available to add additional females to start with, and then the males will be less expensive when you are ready to add them. Or, you will be able to add a couple even stronger males when the time comes. Such as a Killerbee and Jigsaw.