The SingXer is incredible for the price! Great pickup and haven’t heard an iem or headphone I didn’t prefer to hear on the SingXer. I also just received my T60 Argons and they really are the best of both worlds between the detail of stock t60s and the bass and wideness/soundstage of previous Argons. They are definitely worth the $400-500 you can end up spending on them.
That being said I ordered my T60 Argons August 16th and received them December 13th. That’s a lead time of FOUR MONTHS.
If I were in your position I would buy T60 Argons used or place an order and pick something else up you’re interested in. They are great all around headphones but no headphone has kept me from jumping between various options in my collection.