I dont like Dakka Land speeders. You should have plenty of anti-infantry with your 3 Grey hunter units. If you're set on the models i'd go with
MM or
MM/
HF on them.
I would however suggest adding another rune priest and use one of the
WGs with your scouts.
I run my Scouts in this configuration:
5 Wolf Scouts - Meltagun,
Motw with attached
WG with Combi-Melta + Thunder Hammer. 100 pts plus the wolf guard (which you already have).
This is a nice little unit that can do a whole lot more than just target tanks, and still keep the costs down. With 2 Melta shots followed by an assault with
TH and
motw can really dish out some hurt.
Also, your scout units costs 125 points, not 105. 75 for the scouts, 10 for meltagun, 25 for meltabombs and 15 for plasma pistol.
Power weapon on grey hunters usually isnt worth it. either drop it or go
motw. Also im not sure what "wolf tail" is on them and where you got it from
Also on troops it depends on what points size you're aiming for. 3 troops at 1500 is ok, but if you're going higher you'll need more. 4 minimum at 1750 and possibly 1850. Grey Hunters are one of the best units in the entire codex, so you don't really have to think "oh no, i gotta has more of them fething troops".
Also, adding Razorbacks to your
LF units would be a great addition to your firepower. Either go
TL Lascannon or Las/
Plas depending on what you wanna do with them.
Hope that helps