Mortgage for poor credit history but great deposit

Hi
I need help/advice

I'm currently looking at a house on a part buy part rent scheme

The share I need to purchase is £114'000(60%)house valued at £190'000

I have access to £40'000,but still have various debts of £6000 if these were paid and I had say £30'000 to lay down(clearing debts and inc moving fees etc)is it likey that I will get a mortgage,maybe not the best rate but at least a reasonable one over a term of 35yrs(ive just turned 26)

Annual income £23'000

Would they also take into consideration that I have listed someone who will be renting a room with homebuy who earns a similar wage

Any advice/help/past experiences would be greatly appreciated

Thanks for reading