Yes, you can buy basic TTL Chips from Digikey or Amazon. BTW here is the closest I could build up to your specs. I did not use the 7432 OR gate though. Just made a 5 input 7400 NAND gate. When the output of x1 x2 x8 x16 x32(∑=59, because the base10 is one less than the MOD# ie mod#-1=Base10)...