Elise S1: good standard vs slightly neglected 111S

[Fabio81]

Hello everyone and greetings from Italy (I hope you can excuse my english). I’m in the process of buying an S1 Elise and i’m torn between two models
1. A standard early 1999 Elise with the minimal upgrades i desire and/or would have made myself: induction, exhaust and throttle body. General condition of the car seems good.
2. A late 1999 completely unmodified 111S (only the cat has been removed to achieve a more satisfying noise). From the documentation (insurance, etc.) i assume the car has been stopped for about 3 years, plus it has some issues (i hope minor issues): driver’s side window not rolling down, a cut in the rear diffuser (i think it’s due to the cat being removed), and some suspect gunk in the cooling water tank (but it seems more like some kind of deposit than the HGF mayonnaise thing, see attached image anyways).
So all things seem to point towards the standard version. My question is will I outgrow the standard version and want more power at a certain point? My use will be weekend/summer car on the road only (no track use). I have no previous experience with rear wheel drive. Price is more or less the same for the two cars.
What’s your point of view? Thank you!

[Fabio81]

Thanks everyone for the replies!
I think I should be more detailed about the 2 cars condition:

Standard:
-induction
-sport exhaust
-improved throttle body
-work has been done recently on suspensions (bushes)
-braided brake pipes

111s
-cut diffuser
-catalyzer missing
-window won't roll down
-standard induction and exhaust
-car alarm malfunctioning (seems difficult to deactivate)
-still on original Pirellis from 1999
-gunk in header tank
-documentation not ok (currently the car cannot be legally taken on the road to test it, owner says we will road test it on a sunday afternoon when no one's around, he lives in a quiet area)

Both cars still run on Konis and never had the cam belt replaced. 111s has lower mileage (33000 vs 51000).

So with the standard one I'll have an almost road-ready car with all my desired tuning already done. With the 111s I'll have to spend some money as soon as I buy it to get it to acceptable condition (tyres, window winder, car alarm, header tank thing).

What would you do? Thank you very much

[Fabio81]

My budget is 20000€. I could even spend more, but my concern is to make a good choice! Whilst I would prefer the 111S (mainly for the VVC motor and color), with the standard car I would have an almost road ready car, while the 111S needs some work to be done. The standard car is for sale at 20000€ and the 111S at 21000€, I think the price can be further dropped a bit. Anyways, considering the condition of the cars I think the 111S should be actually priced a little less than the standard one.