Congratulations on your new to you boat. As you probably know Solings are a one design racing class, and as such their resale value is very closely tied to their compliance with the one-design association rules. That is both good news and bad news. On one hand you can get all kinds of information about how to best set up a soling for racing under the rules, find companies that have all of the information about how to properly rig a soling and can send you a complete rigging kit at a reasonable price , and find tuning guides and so on, but on the other hand if you ad-lib away from the one-design rules, you can quickly reduce the value of your Soling to next to zero.
Here are a few resources:
Soling Class Association: which has all kinds of resources that should prove helpful
::United States Soling Association ::
Including technical articles about how to lay out a deck and how to sail one
::United States Soling Association ::
Of course you probably should take a look at the Soling One-Design class rules:
http://www.ussoling.com/rules/SOLclru2006.pdf
Companies like:
Harken has detailed hardware specifications and layout info
Harken: International Soling Deck Layout
Sailmakers like North and Quantum Sails have tuning guides....and so on.
There are one design rigging companies that will supply a complete kit of running rigging but standing rigging needs to be sized to the specific boat since shroud and stay attachment methods vary. This requires temporarily standing the rig up and taking careful measurements of the parts. It is much more expensive to produce new standing rigging if you don't have the original rigging to measure from.
That said, the Soling class is very well known and so there may be sources of standing rigging kits based on your year and manufactuer. Generally one design rigging kits, when they are avallable are much less expensive than trying to buy the parts individially.
Good luck,
Jeff