You'll want to either veer towards Cyber, (Cheap rewards, scales later) or have a dump stat. As a Mage, go for maybe two spells, and presume that you'll be eating the drain nine times out of ten. You'll want to have solid Attribute bases, but Skills are expensive, so honestly, skimp 'em for now, have a few at 1 so you aren't defaulting. At that level of campaign, your main goal will be a solid base to build off - if you want to go Mage, down the road, but would also like some skills shooting, then take the Latent Quality.
In a low-BP game, you want to prioritize Metatype, Attributes, special Qualities, then Gear. Skills and Contacts should be an afterthought.