MickyD, can you own those handguns in the UK? Or are you living elsewhere?
For a hunting rifle, the Steyr Scout isn't optimal IMO. I've owned 2 of them, a 308 and a 223/556 variant. It's a Scout rifle, which you CAN hunt with, but it's set up for a long eye relief optic, which is again, a Scout type rifle idea, more ideal for quick standing snap shots, increasing speed, but giving away some accuracy as well as magnification. Plus they are very expensive now, I picked mine up when my business was the national distributor for them back in 2002 or so. I'd get a non-Scout type rifle if it's your first one and you plan on hunting with it, and mount a decent quality and power optic on it. Not only should the optic be of good quality, but so should the mounts/rings, don't cheap out there.
Handguns, personal pref, there are many good options. Decide which caliber is best for your purpose, and pick a type you feel comfortable handling, and fits your purpose. Some prefer striker fired, some DA/SA, some single action. Also, if you plan on shooting a lot, as in tens of thousands of rounds per year, consider a metal framed pistol over a polymer framed one, the Legion you mentioned will outlast the G17, even Glock's own documents only give it a 20k service life, while Sig gives the 226 line including the Legion over double that, and in my experience of seeing millions of rounds go through both types, it's relatively accurate. Most never shoot this much, and therefore if you are going to fall into that category, don't worry about it, a G17 or any other polymer/striker will outlast you most likely.
Try and find a range that rents a wide variety of types/calibers, and try them out, even if it's just dry fire, but try and put some rounds through them as well.
Lastly, don't forget training, even if you can't afford expensive courses, you can self train to a certain extent using videos and the net, and while not optimal it certainly beats just winging it. Learn the fundamentals of pistol shooting, preferably from an instructor, and go from there. Adhere to the 4 major safety rules, and again, have someone instruct you on this, as the margin of error can = your life or someone elses.