You could easily get a better deal on an LCD-2 r2 by buying used on the FS forums here.
The LCD-2 has a more physical & visceral mid-range and bass than the T1, while the T1 could be considered more balanced-sounding (specifically, more treble quantity compared to the LCD-2) with a bigger soundstage. The LCD-2 is also very heavy and has a lot of clamping pressure - I've seen a lot of people complain about jaw or neck pain with it. The T1 is a lot lighter and not as much clamping pressure.
You need to factor in an amp (and possibly an appropriate-level DAC) too, if you don't already have one. The LCD-2 and T1 have very different amp requirements and I'd consider the Schiit Lyr the minimum for the LCD-2 and the Schiit Valhalla the minimum for the T1.
SoundEarphones also confirmed that you can't stack giftcards on purchases - i.e., you can buy two, but you can't use two when buying the item you want.