Has 99blancoSS given you a price to rent his metal rods? They are definetly the way to go. If he seems high, consider buying a set. Then, If you think you are unlikely to ever need them again, just sell them on eBay when you are done. The net cost shouldn't be too bad.

And TDC works great for holding the valves up.

 

You can buy the tools I have for around $240 is what I have invested in them. I rent for one price for as long as you need them. No other rental shop gives that kind of deal. It breaks down to about 10 per tool for as long as you need. You leave a deposit that you get back when I get my tools back. They are out right now for someone else doing a swap but will be back in a week or so. I dont make a whole lot of money on the deal and they certainly havent paid for themselves(except for the hassle free installations I've done). I also inspect them and make sure they are in tip top shape. I replace anything that needs to be replaced to keep them in perfect working order.