A 24 yo wanting to mod a powerful V8 will have all sorts of insurance difficulties wherever they go for their cover.
Either the insurance company will flatly deny to offer insurance cover or they will price it at a level and with an excess where it simply won’t be purchased. Other companies may actually offer a policy but it will still be priced at a high yearly premium with high excess (just not as eye watering as those that don’t want your business).
And the reason is that modded V8’s in the hands of inexperienced drivers are calculated to be a big risk to insurer.
So ring around is all one can do but be seated otherwise you may fall and knock your head when they tell you the cost. Just don’t be too surprised your business isn’t desirable to the major insurance companies
PS: For an old fart like me, a Calais Director was cheaper to insure than a SSVR Motorsports Edition automatic. Both are equally powerful cars with identical drivelines (except rear cradle bushes are different)... It all comes down to the perceived or calculated mindset of owners... Insurance quote for bog standard varied from $800 to $5400 per year for the motorsports edition, the director was $150 cheaper... Excess was around $700 +/-... Shannon’s definitely wasn’t the cheapest and some companies simply weren’t interested insuring an experienced old fart
No idea what a 24 yo with mods would be seeing as a premium, but I’d think the premiums would start over $3000? And such prices are why many don’t list their mods which at yne end of the day may prove to be a fools errand