Melgeek MG Wahtsy ABS doubleshot keycap set
MG is an awesome profile. If you are a fan of MT3 or SA, then you should try out MG. They have the same 'scoopy' feel of MT3, but a similar shape/angle as SA. If you have a flat keyboard, you will probably prefer MG over MT3.
The base kit comes in a tray.
International Customers - Save money on shipping by selecting the "in bags" option. This may make a substantial difference in the shipping price (depending on your destination country), since the trays weigh 8.5oz, they make the weight of the keycaps over 1lb.