The 3555 Gold Tips should work fine with your bow, but you may need to do a little tuning to get them to fly right. I use the Gold Tip inserts and the screw on weights, which come in 20 grain and 50 grain sizes. Adding weight to the back will stiffen the spine, and adding weight to the front will weaken the spine. For your setup, you will mainly need weights on the front end, as the 3555 shaft will be too stiff for your bow with the 125 grain points alone. If you need more weights to get the overall arrow weight up to where you want, then you can add weights to the front and back. Just keep in mind that adding an equal amount of weight to the front and back will result in a stiffer arrow, so to keep the spine the same, you need to add somewhat more to the front than to the back.
Getting a 3555 tuning shaft is really useful. It comes with an assortment of weights. Black Widow sells them, and probably other places too. When shooting the tuning shafts, I hold the inserts in place by wrapping them with the teflon tape you use to seal pipe fittings.
You may end up with a FOC that is a lot higher than you're used to or the recommended ranges given in books. I've read a lot of discussion about this, but nobody seems to think that the high FOC is a problem with the Gold Tips. I mean, if you tune for good arrow flight with bare shafts, you're going to have good arrow flight, period. As long as the arrow is flying straight at the target, and not wobbling, you're going to get as good penetration as the speed and weight of the arrow dictate, regardless of where the weight is.
400 grains overall arrow weight should be about right for you under the general rule of 9-10 grains of arrow weight per pound of bow weight. A grain scale is not that expensive, and is something you might want to consider getting.