Speed daddy's and ssac are both 304, so are Wbodystore's and Zzp's. honestly joe sd or ssac are the best bang for your buck, I can probably bring the jig back from bill's for you to use too. If you really don't want them then I would wait for a set of slp's to pop up for sale, they usually go for about $350 used and are what sd and ssac knock off. No matter which ones you get they can all be a headache to install, luckily your already taking your motor out so that makes the head pretty much go away.