FTB - is this likely to be possible?

Our situation:
- Husband and I hoping to buy our first house together. We are in our late 20s and have no kids yet.
- Hoping to buy a new build property using H2B Equity loan that costs around 200k
- We have 5% deposit of 10k
- Combined salary of around 48k
- Government Equity Loan of 40k using H2B scheme. so would be looking for mortgage of around 150k
- Combined credit card debt of 15k (on 0% credit cards, no missed payments etc)
- Have a PCP car scheme which is showing up as 9k balloon payment on credit report. Got this in December so I appreciate it might be advantageous to wait till after June so the credit application is no longer in previous 6 months at least

We were going to wait till next year when we would have had time to make more of a dent in credit cards, but getting a little impatient and was wondering if we'd be likely to be able to get a mortgage? I know talking to a broker would be the best bet but if it's a total waste of time would like to know!

We haven't even looked at the new build development yet, we almost don't want to get our hopes up if we're likely to be disappointed. They are stopping building there before next year so we would be looking at a different development anyway if we wait.

Would I also be safe assuming if we were looking at a 90%LTV on an older house that is even less likely to be possible with our debt? There's not many houses on the market cheap enough for this anyway!