Is it possible for SpreadX11 aglo to be cracked by FPGA or ASIC with low cost?
Well, there are FPGA and ASIC algos for RSA, so it should not be hard to implement ECDSA. But even if ECDSA is not efficient in ASIC, X11 is so much more efficient that you can have hybrid solutions and immensely improve performance by using ASIC (use ASIC for the X11 hashing and leaving the signing to be done by GPU, for example). You would not be able to use some specific X11 hardware (some already exist in the wild, though not commercially available) because of the block size, but changing the project to deal with larger blocks is quite trivial because only the "blake" part needs to be altered.
The point is: ASIC needs a huge initial investment, and currently, with low prices for cryptocoins, not even regular X11 has a market big enough for it to be profitable. AFAIK, not even scrypt hardware is profitable (for the manufacturers) anymore. So i wouldn't expect anyone investing in ASIC or FPGA for Spreadcoin unless it becomes even more accepted than litecoin or doge...