Hey Fritz and DeffBossGitKrusha,
Sadly the Big Mek does not have an invuln save, which is going to be bad because from what I have seen, the people I'm going to be up against have a lot of ap 2 weapons. He does have a pretty pathetic 6+ fnp, just to give him a small measure of hope against them. For anything that isn't ap 1 or 2, my armour save is 2+ with rerolls.
I could replace the big mek's telyport blasta (s 8, ap 2, blast, rolls of 6 to wound have instant death) with a 5+ invuln, but if I do that, he won't have any shooting attacks. I could replace his killsaw (power klaw with armourbane) with a gun, but ork guns aren't exactly great, especially when there is only one ork.
Just a few thoughts. Looks like you are able to take more than one Ork Relic. (Based on your list) If that's the case. Look at some of the relics in WAAAGH Ghazghkull. You don't really need the finking kap as far as I can tell. If you are allowed to pick from both sets of relics then you could make a very solid Big mek.
I am allowed to pick from both sides. Which of Orkimedes' Kustom Gubbinz do you think I should take. Also, do you think I would be able to get away with taking a telyport blasta and a mega force field because it doesn't say that I can't take both? In the codex it says ''A Big Mek with mega armour can take one of the following: -Tellyport blasta -Kustom force field'' but it doesn't say anywhere I can't take a tellyport blasta and a mega
If I were to take both, I would have to drop the killsaw, the 6+ fnp, the runts, the squig and da finkin kap.