all you need is a heal kit...possibly the borg kit.
Full maco set. doesn't matter if it is only mk x.
a Knockback weapon, maybe a splitbeam or a shotgun.
aim and crouch allways!
shard of possibilities, gambling machine, horta, shield batteries or a hypo (i prefer hypo)
if you have all that, 66000 skillpoints in ground is sufficent to be an effective healer and tank for the cure endboss.