Yosemite and Sequoia in April 2017

[Xenia]

Hi RTA! Please help!

My boyfriend and I are from the UK and are currently planning our California RT next year from 3rd April. We will be hiring a 25ft RV for 14 days starting in San Fransisco.

Our plan currently is Days 1-4 in SF (without the RV)
Day 4 pick up RV and drive to Yosemite NP for 2/3 nights
Day 7 drive to Sequoia- this is where I'm getting stuck as a lot of the sites say that the park is inaccessible this time of year for bigger vehicles, yet their shuttle busses only run from mid May! We really want to see the Giant forest, is there anyway of getting here at this time of year/ would it be too difficult?

Day 9 to LA for 3 nights
Day 12 Santa Monica
Days 13-16 costal drive back up to SF stopping at Santa Barbara, Santa Maria and Monterey.

Second question: is this route do-able? i.e. do we get enough time in each place so that we are not rushing around/ just driving all the time?

Another option we were thinking of was 10 days of RV hire from SF to YNP then San Jose, down the coast to LA (missing out Sequoia) and 2 hotel nights in LA, flying home from there. This is obviously the cheaper option and A LOT LESS driving!

Any help on this would be great!
Thank you!