I would have thought a Brit would have chimed in on this one by now, but since no one has I'll give it a go.
lend us a bob or two = lend us a little bit of money, perhaps some change. I don't actually know how much a bob is. I have to assume this "bob" is not related to the one in the phrase "Bob's yer uncle".
there’s a love = something close to "be a dear" saying that lending the money would make you a lovely person.