You have received good advice so far. Make sure you take the cost of everything you need into account first, and it is nice to see you have a close place to get air. Then work on your budget from there. Besides a particular model, because you could get Bullpup or rifle, it depends on what you think you might like more.
My best advice is not to assume that it will be your last. It might be, but I would say far more people end up trying out several before finding what they really like. Don’t assume you are going to find the perfect one on the first try, if you aren’t able to hold a few at least before purchasing. I thought I knew what I wanted until I went to an airgun show, and helped a lot to see many and get to hold them.
I would also say get what you want. If you settle for something you don’t really want, you will probably end up buying the other one later anyway, because you just have to know.