Turbo project for the 4FB1 engine.

The engine of the Gemini was transported to a Willys jeep chassis years ago and was used as a daily driver. My dad owned the vehicle and now does not use it anymore so he gave it to me. The engine of it was an Isuzu four cylinder engine and now I was thinking of turbo charging it. The main problem I have was the turbo setup. The set up was rear turbo. There was little to no space on the engine bay to place the turbo for the chassis was quite small and making a manifold would not be possible to fit inside, so I planned a rear mounted turbo. Plumbing the charge pipe and intake pipes was not an issue but feeding oil was a problem. The oil inlet is going to be fed from the oil pressure hole teed of going to the turbo. The problem lies in the drain of the turbo. I know that the turbo should be higher than the sump for it is gravity fed. But in this case it is lower and is far away from the sump. What possible solutions can I do for the proper drainage of oil from the turbo oil drain?

I was thinking of a pump that will draw away the oil from the drain of the turbo but has no knowledfe of how to do so. Also I was wondering, if the pump method is right, will the vaccum pump on the alternator work? There is a line coming from the engine block that is connected to the vaccum pump on the back of the alternator. I know that it is used to lubricate the vaccum pump but can I use that to pull the oil from the drain of the turbo?

Thank you for your help in advance