Hey y'all,

Ive recently bought my very first import, a 91 civic hatchback with a 1.5ltr engine. Ive always had mopar but i decided to try and see what i can get out of a honda.
Im completely clueless when it comes to Honda's and id trully love to have some notes/tips/advice and what i could do and what i can expect from my Civic.
First off, its very high milage. It just turned over at 250,000km. Its an Automatic tranny and the body isnt in terrible shape. What im wanting to know is 3 KEY THINGS about the car
-1: How difficult would it be to do an engine/tranny swap and could i do it with simple shop tools. (Looking to swap either a B18C or a H22... As for trannies, i dont even know where to begin)
-2: What are the major issues, besides milage concerns, should i know when it comes to my model and the year of manufacturing
-3: Whats the price range im lookin at for the swaps i want to do and what accesories i need to complete the swap correctly

Again, ive always ran Mopars. Ive had a 98 neon with an SRT swap. Ive had a 98 Dakota R/T 5.9. Ive owned a 95 Ram Cummings diesel with upgraded turbo. The last car i had was a '00 neon with a 2.0 ltr engine. I know enough about domestic car but can be completely honest by saying that i havent a clue about Hondas or imports in general

ANY USEFULL HELP would be much appreciated and would put to good use. Thanks again and cheers to my newly found Civic nation family lol