Even more bollocks.
Whoever told you that sniper rifles have to be expensive should be thrown down a cliff.
They actually require very little to perform and most of the mods are DIY jobbies.
"you need an expensive barrel" no you don't, as long as the stock one is straight, clean and seals well with the hop rubber, it's good.
"you need a r-hop" no you don't, a maple leaf rubber does the same shit but costs €10
"you need a big ass spring" no you don't, if you know how to work with Joule Creep, also FPS means fuck all if the rifle isn't consistent.
"you need a SRS" absolutely not, you don't need to drop €500 on that shit. It's good, but a cheap cyma VSR with some upgrades and tweaks will do the same, for less than half the price.
Do you need a fancy expensive KMCS? no, you just need a BDU in a pattern that blends in well with the environment, and a couple cans of spray paint to adjust the colours. Fuck leaf suits btw, they're shit.
In case nobody told you, home made ghillies are dirt cheap.
As for sidearms, a STTI MK23 with a couple of DIY mods and €20 worth of Hadron parts is the way to go.
Also, you upgrade as you play. No need to dish out serious amounts of money right at the start.