You pose a good question and going mirrorless can seem daunting at first.
As an aside to the "going mirrorless" part of that question, I migrated from DSLRs to mirrorless about two years ago. The EF/RF converter gave me a lot of peace of mind. Because I was not totally convinced that I "needed" mirrorless, I grabbed an R100, the 40mm lens, and the converter to "give it a whirl". I do a lot of street photography and immediately found the R100 to be a go-anywhere coconspirator. That hooked me on mirrorless and GAS (gear-acquisition syndrome) kicked in with a full-frame body added to the mix and a migration to RF lenses over time. I almost jumped when the R came out and now I wish I had.
Because my film photography is done on Nikons and Pentaxes, I follow a Pentax forum where people swear that DSLRs are the Holy Grail and that mirrorless cameras are sheer evil. As a mirrorless "convert" I can attest to the change being painless and linked to budget as you have wisely noted.
