Welcome to the group Sandra
You are in the roight place to start your search for an FGRV, but you need to tell us a lot more
Number of beds, need for a shower, separate dinette, minimum & maximum acceptable length etc.
Acceptable age, (my 42 y.o. Hunter is in near as new condition)
And, wanting a convection
microwave is really getting very selective. That's usually an aftermarket appliance
And, certainly not least, your approximate budget
Let us know and help will be forthcoming.