I can trade you both a Whismur and an Exeggcute if you'd like. I'm looking to complete my Dex as well, so it would really help!
Well i guess i can help you too depending on what you lack. As i said I only need spoink to be done with the pokedex.
Also for El_Maka if you only need to see an Exeggcute there's a trainer that has one on route 228. It's a pokemon ranger and you need to fight him with the Vs.Seeker after beating the 3rd league (the lvl 80 one). Might be unneeded but it might help.