Wifes Simple IRA and Trad to Roth IRA conversion

Starting next year I was planning on both my wife and I to contribute $7,000 each to a Traditional IRA and then convert it to a Roth IRA due to income limits of the Roth IRA. After doing some reading it seems this is not an option since she contributes to a 408(p) Simple through work. Is that the case?


If she can't do the conversion, then can I do a backdoor Roth conversion since we file married or would I not have the option?

I understand the Simple and Trad are two separate IRA account types so could we both contribute to a Trad IRA and just not do conversions to Roth IRA?