Speed booster plus all the manual focus glass you like. f1.4 with speed booster is almost the same as 0.95. Just for example.old nikon ai-s 24 2 , 35 1.4 , 50 1.2 will cost less than 999$ and will keep their value forever. They are also very nicely build and you can use them on fullframe. There are many options, thats just one example. You could also buy modern sigma art 24,35,50 1.4