What To Do....?? G13 PE Dilemma

Hey, I've got myself a dilemma. I have been keeping a strain growing the last while but am now down to my last plant. Its 1 week into flower 12/12 and history tells me it's likely to Yield 40-50g.

Here's the problem. I got 5x G13 PE seeds the other day and they're auto's. I admit I got lost in attitude's bank and hastily bought them without actually knowing about auto's

Do I wait 9 weeks and Harvest my 50g, then start my PE seeds? or..

Do I get rid of the plant on 12/12 and start the PE immediately?

I would hope to take 80g min/plant in say 12 weeks if i started the PE now. Potentially 400g

so 40g in 9 weeks or 400 in 11?

clone the shat out of it and put the autos in. Put the clones in with the autos and then top and clone them again later on. By the time the autos finish you'll have 20+ 12/12 plants ready to flower

I haven't got capacity for 20+ plants, nor do i have the nerve to defend that kind of production in the courts.

I think I will delay the Autos about 4 weeks then start them off in a separate cab. Ill leave them in that cab until the flower room is empty. At that time, Ill put the PE plants (@3 weeks) into the flowering room set at 18/6 until they are matured.

How bad an idea is starting off the PE on a single cfl? I haven't really got many options. Its a suitable time of year to have my flowering plant in daylight to finish flowering but the weather in Scotland is shit and i have doubts over any success this would bring.

I have read reports of varying success with cloning auto's. More research needed I think. I'm not a stranger to cloning, having relied on this, the last 3-4 years. I guess once they sprout and begin stretching it will be easier to make a decision.