WWAN modem for x230

So I wanted to get myself an lte/hsdpa+ modem so I can let my phone rest a bit, but the price of mc7710 is just ugh, 50-80$ in my country is a bit pricy, while I can get something like DW5570 for ~10$ is there any alternative for mc7710 with cat3 that can by somehow cheaper?
Also is there a really big gap in speeds and pings in those 2 I mentioned? I couldn’t find any tests that could tell me the speeds pepes were getting so I’m really not convicted about getting the mc7710.
And is there a way that I could use mSATA to m.2 adapter with an ME906E that combined with adapter I would pay 25$?

You only want an internal modem?

ye, but from what I read in techspec I will have to get the mc7710, it’s the easiest option, and the integrated simtray might not work with mpcie adapter tho