My understanding is that whilst home dechroming isnt that difficult ...the real issue is the resultant solution is extremely hazardous to dispose of, so I either leave my dechroming to the platers or polish it off.
On the sidecar I have had quite a lot of parts electroless nickel plated, gives a very even coating so even suitable for barrels etc, (have seen indian fours, barrels and heads so plated) not that I've gone that way, but my clips ons and engine plates are nickel. Polished its has a lovely lustre, but again not a job I do myself.