JP,
Keep it orginal,Unmolested porsches in the future will gain the most appreaction (sp) . Almost everyone mods them out w/engine upgrades. I passed up on a 1969e about 12 years ago,Mint condition/ultra low miles No sunroof Price $4500.00
. My current keeper is a 1970 914-6,Bone stock.Any vintage porsche factory stock is getting harder to find these days....
good Luck,914