Heyo!!
So will the ARENA block A tickets be ok for all 3 of you? It'll be 10,500yen per ticket. But one thing is, the 4 tickets are sold together (cannot be separated), so is it possible if you can find another person to join you? If not, let me know and I'll see what I can do.
Also, are ARENA block C Kuu tickets ok for Lacus and Leechan?
That one is 18,000yen each.
Once you guys are ok with the seating, let me know how you would like to pay (PayPal, or POSB for Singaporeans) and I'll PM my account number to you. ^^