Keep in mind that RVC requires AHEMS and then EMS during clinical years. Be sure to factor these into expenses. Travel to them alone can get pretty costly. Having a car is helpful for EMS in particular, but that's a huge expense in the UK. You'll need to get your UK driving licence, which means taking lessons and the written and practical tests. The UK driving test is one of the hardest in the world, with first time pass rates below 50%. I personally spent about £600 getting my UK licence, which included about 30 hours of driving lessons (I did mine in a manual transmission car). Insurance will be ridiculous as well as you'll be treated as a new driver. These are just some extra expenses that you may not have thought about.
The exam style at RVC is both great and horrible. In the first year of the 4 year program, we only had a small multiple choice test in December, another in March, and then massive exams that are 90% of your grade for the year in June. It's great that you don't have constant exams weighing you down and stressing you out like in the US schools. But preparing for end of the year exams that cover EVERYTHING you learned that year in detail is absolutely miserable. Personally, I'd prefer to be examined more often to force myself to learn the material better throughout the year. It definitely takes discipline and self-motivation to be on top of things. That being said, you only need to get 50% to pass, and 70+% is fantastic. It's an adjustment. I wouldn't necessarily let it be the deciding factor, but you need to know what you're getting yourself into.
Also, you won't really have summer breaks to go to work or find a research project or whatever, especially in the 4 year program. AHEMS and EMS will take up the majority of your time off, so you couldn't really go work somewhere for 10 weeks in the summer because you're too busy providing free labour to farmers (that's what a lot of AHEMS ends up feeling like). AHEMS can be fun and it is good experience, but I had a really good job to go back to last summer and was only able to work 4 weeks because the rest was spent doing AHEMS.
Basically, just keep in mind that there are probably a lot more expenses involved with living abroad than you've thought about, and know what you're getting yourself into with the UK vet school style.