Hi Kim - felt I needed to post on this due to my own experience.
When starting our search for a live aboard, I was extremely unrealistic about costings and size required.
We had a lucky escape when we nearly bought one of the first boats we saw - a 30ft narrow. Having lived aboard a 57ft for 5 years now, we often laugh about even considering 2 of us & 2 cats on a 30ft!
However, we did get caught with a little Springer that we really fell in love with. It needed work but we couldn't see past the character and homeliness of it and forked out £25k. Further investigation revealed, despite having had a survey done, it needed far more work than expected and more than we could afford. It had been tarted up just to sell and we had the wool pulled over our eyes with the lick of fresh paint and new floor put over the top of a very damp & rotten one. We couldn't bear to admit our mistake and kept it in the vain hope that one day we'd save enough to do it up. Sadly, many years later, she's still lying empty and untouched - having deteriorated past the point we could probably ever refurbish her & we can't sell her without losing almost all the capital invested. I still get my heartstrings pulled every time I go to check on her but in reality it was a very expensive mistake (she's been like a millstone ever since) and one I would not like anyone else to go through.
Ridiculously we ended up buying a 2nd boat, bit more expensive, bigger, but needing no work except usual maintenance and we lived happily on this one for 5 years. I really wish we'd gone for this one in the 1st place!
On the more positive side, I agree with others comments about Springers - they've been give a bad rap over the years which they don't deserve and generally are pretty hardy despite their often slimmer hull thickness.
Not sure if that helps you at all - let us know what you decide to do though!