you bought a 33 year old boat with an obsolete motor/drive with a compromised hull. (fiberglass does not dent)
The brand name is still alive, however Reinell has been bought and sold a few times in the past 33 years.
first, prior to even thinking of spending much money on it, go thru this list from the sticky at the top of the forum
https://forums.iboats.com/forum/gen...eeding-help-buying-a-boat-a-buyer-s-checklist
Most likely you will find rotten stringers and transom. that will be about $2000-$3000 to repair
regarding the interior - by lot of work, describe what you are talking about? a well maintained boat would still be in fairly good condition. however if the boat was left outside, the interior would have long rotted. an estimate on the interior is about $1500-$3000 depending on your skill set
regarding your questions
1 - if it was properly winterized, with all the drains pulled. you have nothing to "do". however because it sat for a decade, you have the following list of maintenance:
- pull the drive and inspect the alignment and gimbal bearing. you will need an alignment tool
- replace the raw water pump
- inspect the u-joints
- replace all the bellows
- R&R the gear lube.
- replace the water supply hose to the transom shield
- inspect the exhaust rubber parts
- pressure test the motor to make sure it was winterized properly. good boats dont sit for a decade. most likely something catastrophic happened and that is why it sat.
- squirt some oil down the bores, and do a compression test.
- replace the plug wires, plugs, cap and rotor
- pull the carb and go thru it, install a new carb kit
- change the fuel filters
- clean the tank and lines
- inspect the anti-siphon valve
- change all the hoses
- change the thermostat
- change engine oil and filter
- re-prime the engine oil system
2 - factory manuals for OMC can be obtained from
https://www.outboardbooks.com/ there is no manuals for your boat.
3 - a good quality filter such as Wixx or Napa (rebranded Wixx) and a good quality oil with zinc in it for your flat tappet motor. suggest Rotella T4 15W40
4 - full maintenance