I am thinking about selling my account and I want to know how much it could go for in NX currency

Rank: MAJ4
KDR: 2.13
GP: ~24k, I constantly spend GP on MystGs so I can never save up
Silver NX grade - Spent at least 200$ on this account
Perms: P90TR, K5SD, G36LE, M1911 MEU, AK-47, M4A1, L96A1
Other goodies: Hana - ~40 days, M417SB - ~47 days, L96A1 Super Magnum - ~55 days, USP - ~55 days

I am not exactly sure about this yet so I am not posting any SS's yet. All I want is some suggestions on how much NX my account could go for so I can actually decide whether or not its worth it and this is one of the websites that could help me out in terms of this so I am posting here.