Decision Again.=(

So Hi forum I`m back Mr.Confused about everything.
I am deciding to sell all of my gun. I know you don`t want to know that so lets continue.
Which should I get again
G&P M16VN By now you should all know what it is.
Some Systema Compression parts. Such as cylinder head and air nozzle
Guarder Full Cylinder
A Madbull 6.03 455mm Because I heard that is the magic number.(correct me if I am wrong.)
A systema hop up bucking. A echo 1 H nub. I`ll get a SCS nub if I don`t like it.
A Azuimuth piston(blue piston thingy)
A Aim silent piston head
M125 spring
Yes I know a carry handle scope mount.

Here is my other option. I like it because of Profalconey
A&K Svd $138
Steel piston catch or sear. 30 dollars
http://airsoftpro.cz/eshop/product_info.php?products_id=821&osCsid=efd0f0a92fcc185a4bcb7c59d6284110
A piston that uses aeg piston heads.(30)
http://airsoftpro.cz/eshop/product_info.....cb7c5 9d6284110
A madbull 6.03 590mm tightbore.
A Guarder Black 70 bucking.
A side scope mount. ( Comment if you know what scope mounts fit and which don`t)
http://www.airsoftpost.com/product_info.php?cPath=25_107_290&products_id=35282
A Tasco 3-9x 30 supply by Walmart.
A polishing resin(Got to go find one)
A Drill to drill the hop up to prevent double feeding.
M170 Spring
25 percent off. For some items because of Black Friday soon to come.
Same with M16 up there.

Thank you for reading this. I know it is a pain to read.
Anything to add feel free.

Forgot to add I am going for range and accuracy. ROF doesn't matter. I will have support gunners. I just need to hit the guy before I get into his/her range. Hencing it is a standard aeg and not a counter sniper.