dilemma, upgrade mobo+proc+ram or keycaps

my proc and ddr2 is dragging down my gtx660ti.
looking for good price 2nd hand parts for this n see if got enough for keycaps or not...haha

i've thought of getting extra 2x2GB ddr2, but i'm not sure if it's good enough.
but i guess that's the most economical way to get some upgrades and keycaps

We're not living in the XP era anymore dude. 
If you wanna get 4GB first, then just get one module (1 x 4GB), you can top up with another 4GB when you need it.

taobao plenty used.
if condition ok just clean and use.
remember to clip Cherry stab. nicer bottom out.

click 二手 after you search the keyword

if you can't find QFR, there's always keycool 87 it's standard layout and it's pbt keycaps
Edit: oh wai, u looking for red switch? mine is blue.. :/
reddish or greenish? u going for Christmas theme?

for keycaps, usually we get from taobao

So, "ABS Black Team Edition Red axis"
Is the one for Keycool 87 Black case with RED SWITCH????

If i buy it, i wanna bundle with pbt keycaps...

The "What if I tell you taobao got" is referring to taihao, but whatever, no reason to get taihao from taobao since there are other choices like Vortex/KBC in taobao.

For the PLUM96, mine is 1st gen, which is PCB mounted and using Cherry stabiliser. The spacebar spacing is a little off standard, akind to last gen's keycool.

Currently, there are 2 options for plum96 available in taobao, one is wired only and another is wired + wireless. Wired only one can't do backlit, while the wireless one can. For the layout and keycaps compatibility part, the wired one (owned by one of the member here - JohnDiew) is having all keys (including spacebar) standard, except for the single sized 0 and 00 instead of 2x sized 0 as of normal keyboard (which isn't really a problem if you are get used to TK already).

For the wireless one, since no one here own it b4, so I can't guarantee to you it will be same as the wired one. So if you interested to get the wireless one of it, I can help you go China forums and ask for a more definite answer.

TL;DR:
Wired version confirm standard (except for the 1x 0 and 1x 00 instead of 2x 0), if want confirmation ask JohnDiew
Wireless version I can yet confirm it. If interested I can go Chinaforums help ask.

if u can afford it, and like the design, and too much time, i'd say GO FOR IT!
but, what about keycaps?

i'm lacking on the afford it part