Given that you are 45 I’m gonna assume you have a tiny bit of disposable income to spend……
Don’t buy a pre made complete, build one up. Ideally go to your local skate shop ( they will probably be stoked to help you set up a board – skating is far less judgemental than it was 20 years ago )
Popsicle decks are all fairly similar, width counts but wheelbase does too. Personally I would suggest something 8.75 ish. Wheelbase of 14.5 is a good medium staring point. That kinda size gives you a bit of real estate for sketchy landings.
Trucks wise it’s a bit personal preference so just buy some! Mini logo are a good budget choice, film are good and cheaper than the “ big 4 “ brands.
Indy, ace, thunder & venture all feel different but you may not notice to start with anyway.
Hardware ( truck bolts ) just buy the cheapest and for bearings, mini logo are excellent value
Wheels wise, spitfire F4 are the industry leader but OJ, bones or slime balls are all good too and a little cheaper. 54mm and 99a ( or 97a maybe ) are a good starting point.
Wear pads, join middle aged shred on Facebook and check out some old man skateboarding tags on Instagram.
Also, wax a curb near your house, it’s hella funa and you don’t even need to be able to Ollie!……
F@@@@in love skateboarding……
https://www.instagram.com/p/CZfB3WSpGYl/
https://www.instagram.com/p/CbR-j44sPJK/