Hi
@Simes. Welcome. I'm a newbie myself so can't offer high level advice. However, I can second Tim's recommendation of
@Aquarium Gardens. If you have the time/inclination, it's well worth a visit to them. I know it's a bit of a drive for you but I think it's a valuable investment and you can make a day of it. They're closed now until the 3rd January '19. I was in there last weekend and spent about 2hrs playing with hardscape materials, checking out their demo tanks and getting advice/asking (loads of) questions. Stephen was a great help. (NB: I'm useless with names so I hope I got his one right - apologies in advance if not!!).
For the fish, I would suggest trying some more to find a lfs that offers what you want to the right standard. If you can find one close to home, that would be first prize. I searched online (back in about 2006) and found only Pets at Home local to me so tried them and drove around others (mainly in garden centres) within 20 miles from home before, after about 2 years I found one within walking distance of home that had been there all along! I've used them ever since with no regrets. If you go through the forum
https://www.ukaps.org/forum/forums/where-to-buy.4/ you may find other people more local to you with previous advice and it may still be relevant.
For the lighting, I am not an expert but have you decided what type of bulbs you want? T5's or LED? How much strength you need? and what you want the fitting to look like? Also budget. Once you have that info, you may want to post in the Lighting Forum:
https://www.ukaps.org/forum/forums/lighting.50/ for more advice?
For your fist answer on this question, I ordered (not received yet, should hopefully be any day now) the Chihiros A801 Plus LED lightset, a.k.a Chihiros A801+. Once my setup is done/underway, I'll be more informed about this particular item. I can't be 100% sure if your tank is 79cm or 80cm (the Amazon link you supplied mentions both). Mine is exactly 80cm which is partly why I chose that particular light.
Enjoy and take your time getting answers before spending (big) money!!
Regards and all the best
Michael