if u happen wanna get mx frm there, can group buy liao. since i also want to get clears

Taobao going to be cheaper, but you need to wait till CNY festive is over.

Since minimum purchase is 1KG and those things you mentioned is just few grams, may be you can consider getting some sets of aftermart keycaps together.

Enter key (it is rare to find invidual enter key to be sold alone, may be you need to purchase the whole numpad cluster or even whole full layout)
Plastic claw (it's stabiliser inserts, in taobao they call it "豆豆" and "龙舟“, IINM osmium is made by same OEM as razer bw - iONE, I too had bad experience with their stabiliser inserts and eventually swapped it with keycool one)
Metal bar (as for metal bar, it is hard to find aftermart parts, worse that for iONE made board with 6units long length instead of costar 6.25units length. your best bet is to carefully bent them back)

If you are to get aftermart keysets from taobao, do notice that most of them are for costar/cherry standard layout, which the bottom row keys are 1.25 units long, with spacebar of 6.25 units length. You can find iKBC's RGB modifiers set which have included compatible keys for 1.5x sized ctrl and alt.