Better variation insertion system

Hello,

I have a product with 4 variation options on it:

– length
– color
– splitting
– halyard system

Now, each option changes the total price, for example:

Legth = 6m
color = white
splitting = yes
halyard = inner

Total cost = 30$

Now my problem is, that to have a varying price range I would
need to insert about 100 different variations of the product, so:

6m – white – splitting no – halyard no
6m – white – splitting yes – halyard no

and so on, this is really slow and not very efficient.

So my question is, is there any better system for
inserting these variations faster ?

For example, I could have a base price and then each variation has a set price which if chose adds to the base price, like so:

6m = 10
7m = 20
8m = 30

white = 15
silver = 10

splitting yes = 5

halyard inner = 10
halyard outer = 20

Now if i choose this:

7m (20) + white (15) + halyard inner (10) = 45$

Is something like this possible?