V Power Equipment is a side business (and our shop is located at a residential address). However, we do buy truckloads of store returned power equipment and test/fix all of it - or in the case of our handy man specials we just make sure certain parts are present (these units are generally not as nice looking as the ones we feel we can sell online as refurbished which are nice looking and run good without us having to do much work to them).
As far as the 420cc - I dont know if we have something we can put together as a handyman special... we dont get in nearly as many 420cc engines as we do 212s.
If you are looking for something specific, message me and I will see if I can help.
Thanks!
Justin
V Power Equipment