I would suggest that you do the medical, after a few lessons.
Let's be sure that you still enjoy it, instead of spending the price of five hours in the air, on finding out that you are healthy.
So then, if you like it, and pass a Class 1 medical, just go with the flow. Do not concern yourself with whether or not you need to do a full skills test. Either you can pass it or you can't.
If you can, then it's all good and you will have learned a wee bit along the way. If you can't, well you shouldn't be up there if you can't pass the test.
You did it all before, so you ought to be able to do it all again. Flying is a perishable skill, but you can get back up to speed.
Good luck, and let us all know on here how you get on. I'd suggest that Perth will cost you less, and might be more fun than Dundee.