500 point list from new

Hi all. I am slowly painting my models. I am wondering if my fellows can give me advice on my list. All of these came from the battle box and buying one model.

Archon: PGL, Drugs, HW Grenade, SF, Venom Blade, HuskBlade 170 points

Wytches: 9 of them, HWG . 108 points.
Raider: NS 70 points.

Warriors: 10 of them. 90 points.

Reavers: 3 of them, Heatlance. 78 points.

Total 516 points.

I can trim some stuff out to make it 501 but is it worth it? My meta is vanilla marines, necrons, 'nids, and a GK/Tau army that sometimes plays. Thanks.

Way too many points riding on the Archon.
My 500 pt Archon is sf venom blade and splinter pistol.
I run two raiders withou t I upgrades.and dissies on both(h aywire is plenty of at for 500 imo )

yup, trim those points back massively on the archon, just a shadowfield and venom blade.
drop the upgrade on the other raider and you should have enough points to get a radier for the warriors.
this gives you two lances for AT, a decent CC unit, some AI fire and a heat lance off the reavers to boot.

if you know you're not up against any armour, you could swap the HWG on the wyches out for a hekatrix with power weapon, as it could be useful getting through tau suits as well as marine and necron armour.

Thanks all. I don't have another raider at the moment so will have to buy one.