What to buy ?

ok so im thinking about giving another 50-60 euro to my account .
but i don't know what i should get .

either 2/3 perms . probably a m4a1 desert Warior , M6A2-SRT and a KS5D.

or

other stuff like .
full spec for Quarentaine(m32...) and Fireteam(flame,caltrops...)
black hisec keys .
and
renewal kits for my p90 tr se .

if you know that i already have these perms .

m417 combat
ak74m
Famas G2
TRG-41
pp19 mod
m4 super 90
USP SE
Desert Eagle SE .

and i have more than 60days left of speedgear .
and if it would mather for the spec i have 30 days left of vacation so i can get full use out of it .

also don't come crying saying that Spec is shit and only noobs use it . i use it for Fireteam/Quarentaine for the other game modes i still use my speedgear .