also for a7 you can buy 28-70 sony fe kit lens which is cost 100 bucks on ebay. 500 bucks and top notch kit completed. add here old good manual focus lens samyang 85 1.4 for 150 bucks or minolta 50 1.4 md for 80 bucks and voila you got absolutely professional mirrorless full frame gear for 600 bucks overall. with this set you can even take commercial shooting orders. i know guys who worls exactly on a7 + manual 50mm taking lots of commercial portrait photosessions. add here 24/28mm manual lens and you can get car/interior shooting easy.
or just having fun and shooting street/urban/landscape for you own pleasure
life is easy if you have mirrorless full frame and load of good lenses