That's a shame about your Connie. They are great bikes. I can answer a few of your questions: 1. You will not need to replace your cables if you raise your bars an inch. I have Gen-Mar bar risers on my ST1100. 2. I have no complaint with the heat throw off on my ST1100, and I'm in Louisiana. Others may disagree. It's a personal issue. 3. The only known issue on the ST1100 is the pre-96 models had a 28 amp alternator that may give up the ghost if a lot of electrical accessories are used on the bike. The post 96 bikes had a 40 amp alternator that is very robust. The 28 amp alternator can be replaced with the 40 amp alternator easily and relatively cheaply. See if the 91 your looking at has had the upgrade done. Check ST-Owners.com for detailed instructions. If you don't run a lot of electrical accessories it is not an issue, although I would still do the upgrade because the 40 is a stouter unit. That's it. The ST1100 has no other known failings, and I feel is one of the best bikes Honda ever made. 4. I have heard there are custom pegs available for the ST that lower them, but I am not sure if there is an adapter involved. Again, check ST-Owners.com. Those guys know everything ST. 5. The back tire is a 170/60r17 size. It is an odd size, but I have had no problem finding them. I have personally seen an ST1100 with over 200,000 miles on it. That was a couple of years ago, and the guy is still riding it. Higher mileage, well running ST1100's are common. The only maintenance issue to stay on top of is to make sure that the splines on the back drive shaft are heavily lubed before the rear wheel is remounted at a tire change. If not, the drive shaft will wear prematurely. That, and routine maintenance is all you do. The bike is way over built, and used by police forces in Europe before the ST1300 took it's place. You will notice that the ST1100 is noticeably heavier than your Connie, but all is good once you start rolling.