Hi Matt, thanks for the offer of the lift, yes I have got faster. You may want to retract that offer though when you see the train prices as you may feel it better to go by train, no offence taken !!
Just had a look and a single from lough (changing at lec) leaving lough 6.40 arriving Northampton 8.40 is £20.60, a return is £21.10 so will be cheaper for lecester,
A single from Tring to northampton is £13.70. For me, the last train home from Northampton is 19.45 which means the latest train I could get from tring is 18.01 to connect with that. I Think I could do the run in 8 hours no probs but that doesnt allow for something going wrong so would be too much of a risk. (for you I expect there will be a later train back home if you did the train option).
My alternative is to travel home via london meaning the last train I can get on the cheap deal is 19.10, the cheap train back is £18 although they are not yet available for that date. IF you are going to do the train and are therefore not going to beable to offer a lift I will go back via london (even though it is more expensive but I dont like being stressed about missing the train). I will need to book that in advance though to get the £18 ticket and it looks like they will be out in the next week or so.
Re grantham, I expect Rory will have some sort of deal with the hotel and hopefully he might beable to pair people up so that we can use double rooms between two rather than pay a supplement.