Good to see you are not rushing into anything with this!
I'm sorry, I'm going to be Dad here, you will be spending a big chunk of wedge on this engine rebuild, I really hope you have done your homework about who ever you have booked with:
Have they got solid VAG experience - better still rebuilt an AVY engine before?
Do they have good reputation? - googled for reviews?
How long will they take? - if they don't know what they are doing a few weeks can very quickly turn into months
What guarantee will they provide for workmanship and materials?
Not being funny, the fact they can fit an engine rebuild into their schedule within a week or 2 would not be a tick in the box ....that is unless the situation was really desperate. As already said by a few of us, you have good compression, your current oil leak is not terminal, your situation is a long way from desperate - probably just requires a head rebuild alone
Just as an example, I enquired at a very good garage about getting a bottom end rebuild done for mine, they were happy to take on the job, but couldn't book it in for 2 or 3 months.