I don't think the Catholic Church does present Christ differently than we do.
Read the Catechism. They are adamant that Christ is the only way to the Father, and they teach that Jesus is God the second person of the Trinity. They believe that he died on the cross for our sins, was buried, and rose again and is seated at the Father's right hand.
They only differ in how the grace of God is applied to the elect. Yes they have a more elaborate explanation, but it all hinges on God's grace and the efficacious work of the Holy Spirit.
Sacraments are signs and symbols that the Holy Spirit efficaciously uses. We preach the Word and believe that the Holy Spirit efficaciously uses it. No difference. They extend or expand the elements God's Spirit might use: baptism, eucharist, confirmation, holy matrimony, etc. So what. God can't use these means to communicate truth behind the symbols/signs?
They totally miss it on Mary, her immaculate conception, sinless life, perpetual virginity, etc. So what. God can't work around this misconception and misunderstanding to save the devout practicing Roman Catholic?
They blow it on purgatory. So what. God can't redeem the Roman Catholic who knows that he is a sinner, confesses his sin, turns to Jesus Christ for salvation, and obeys his church's teaching with the new found power of the Holy Spirit operating in his life?
Devout Roman Catholic believers aren't trusting in their works, they are trusting in the work of Christ on their behalf and rejoicing in the work that he is doing in and through them. This statement is repeated again and again in the Catechism.
God is at work, my friends, even in and through the Roman Catholic church.
Now there are millions of Roman Catholics who have a perverted view of their church and how one is saved, just like the millions of Baptists in the South and elsewhere who have a perverted view of what their church teaches about salvation.
I'm still waiting for an answer to my question. How much doctrine has to be correct before God can save me?
As a Calvinist, I allow room for my Arminian brothers to disagree with me and still be saved. IMO, it is no different with RC who believe their church's teaching as found in the Catechism. They believe in the same God and the same Christ. They only differ in how grace is applied, and then only in degree, not in kind. I submit that Baptists have their own formulas of salvation that they are trusting in that are or may be just as egregious to each other's ears (easy believism/Lordship salvation) as the Catechism appears to be.
I don't care what true Christian denomination a person is in, including RC, if a person tells me that salvation is by grace through faith and that they believe that God raised Jesus from the dead, are confessing him as Lord, and have called on his name, that's good enough for me. (I'm talking about orthodox churches, not cults that believe that Jesus and Lucifer were brothers, God was once a man, etc.). We can disagree on charismatic gifts, eternal security, perseverance of the Saints, nature of the incarnation, nature of the trinity, eschatology, ecclesiology, and on and on. So what. None of this has any bearing on God regenerating a lost person.
Therefore, anything more than that is making "understanding right doctrine" a work and condition of salvation. And we are right back at doing what we accuse the Catholics of doing - adding to God's grace. In this case, grace plus "right understanding of how justification and sanctification work."